EU posting law between market and social protection - Recent case law of the ECJ on sanctions and cross-border traffic, in: EuZ 4/2022, pp. 1-30.

Impacts of Digitalization on Employment Relationships and the Need for more Democracy at Work, in: Industrial Law Journal, dwaa029, pp.1-25.

Tension between paritarian administration and duty of confidentiality, in: Schweizer Personalvorsorge (SPV) 01-2018, p. 82-84 (translation into French on p. 85-87).

Is there a right to work?, in: Basler Juristische Mitteilungen 3/2017, pp. 117-139.

New forms of work organization: Internet platforms as employers, in: ARV 4/2016. p. 243-254.

The underestimated importance of the ECHR and the case law of the ECtHR for employment law, in: AJP 12 (2015) 1671 ff.

Protecting privacy in the workplace in digital times - a human rights challenge, in: European Journal of Labor Law (EuZA) 1 (2015) 48 ff.

Company access rights of trade unions under employment law and collective employment agreements, in: AJP 11 (2014) 1454 ff.

Dismissal protection in transition - Quo Vadis?, in: Jusletter of June 20, 2011 (together with Sara Licci).

EU posting law between market and social protection - Recent case law of the ECJ on sanctions and cross-border traffic, in: Baumgartner Tobias/Kellerhals Andreas/Uebe Wesselina (eds.), EuZ Jahrbuch 2022, Zurich.

The Swiss Posted Workers Act and Free Movement of Services, in: Maresceau Marc/Tobler Christa (eds.), Switzerland and the EU - A Challenging Relationship, Leiden/Boston 2023, pp. 117-141.

Labor law in public procurement, content and effects of the (revised) provisions in BöB and IVöB, in: Zufferey Jean-Baptiste/Beyeler Martin/Scherler Stefan (eds.), Aktuelles Vergaberecht 2022, Zurich 2022, pp. 147-193.

Les effets de la digitalisation sur le partenariat social, in: Palma Ramalho Maria do Rosário/de Oliveira Carvalho Catarina/Nunes Vicente Joana (eds.), Work in a Digital Era: Legal Challenges? / Trabalho na era digital: que direito?, Lisbon 2022, pp. 565-584.

Securing livelihoods and health protection during Corona through labor and social security law, in: Kurt Pärli/Weber-Fritsch Tabea R. (eds.), Symposium, #iuscoronae, Rechtswissenschaft in der Corona-Krise - Tagungsband mit Referaten zu Forschungsarbeiten an der Juristischen Fakultät der Universität Basel, Basel 2021 (together with Bettina Fischer).

Application of the regulations on staff leasing at "Uber Eats", in: Geiser Thomas/Hilb Martin/Pärli Kurt/Stengel Manuel/Wittmer Andreas (eds.), Ein Kunstflug durch das Recht und die Governance, Festschrift zum 65. Geburtstag von Roland Müller, Zurich 2021, pp. 17-33.

Commentary on Art. 11 BVG, Art. 14 FZG, in: Hürzeler Marc/Stauffer Hans-Ulrich (eds.), Basler Kommentar zur Berufliche Vorsorge, Basel 2021, pp. 126-144; pp. 1799-1809 (together with Christina Kämpf).

Les effets de la digitalisation sur le partenariat social, in: Dagron Stéphanie/Dupont Anne-Sylvie/Lempen Karine, L'oit et le droit social en suisse: 100 ans et après?, Geneva 2019, pp. 191-221.

Observation in the employment relationship, in: Kieser Ueli/Pärli Kurt/Uttinger Ursula (eds.), Datenschutztagung 2017, Baustelle Datenschutz - Observation als Brennpunkt, papers from the conference on March 28, 2017, Volume 102 Schriftenreihe Institut für Rechtswissenschaft und Rechtspraxis, Zurich/St. Gallen 2017, pp. 161-178.

"Publicization" of labour law : Tour d'horizon through recent developments, in: Dunand, Jean-Philippe / Mahon, Pascal / Perrenoud, Stéphanie (eds.), Le droit de la relation de travail à la croisée des chemins : Convergences et divergences entre le droit privé du travail et le droit de la fonction publique, 2016, pp. 243-257

The significance of Art. 11 ECHR for trade union rights, in: Bäni Eva- Maria/Obrist Angela (eds.), Festschrift zur Emeritierung von Jean-Fritz Stöckli, Zurich/St. Gallen 2014, p. 435 ff.

Evaluate, control, monitor: Datenschutz in Arbeitsverhältnissen, in: eds. Kieser Ueli/Pärli Kurt (eds.), Datenschutz im Arbeits-, Versicherungs- und Sozialbereich, Aktuelle Herausforderungen, Referate der Tagung vom 29. November 2011, Schriftenreihe des Instituts für Rechtswissenschaft und Rechtspraxis, St. Gallen 2012, pp. 29-54.

Posted Workers Act, Stämpflis Handkommentar, 2nd edition, Bern 2021.

Labor Law in Switzerland, 4th edition, Bern 2019, (together with Thomas Geiser, Roland Müller).

Posted Workers Act, Stämpflis Handkommentar, (2021 publication of the 2nd edition, see above), Bern 2018.

Contrôle des conditions de travail par les partenaires sociaux, Zurich, 2017 (together with Anne Meier).

Arbeitsrecht im internationalen Kontext - Völkerrechtliche und europarechtliche Einflüsse auf das schweizerische Arbeitsrecht, Zurich/St. Gallen, 2016 (together with Tobias Baumgartner, Eylem Demir, Cornelia Junghanss, Sara Licci, Wesselina Uebe), Zurich 2016.

6. Basel Employment Law Conference, The Importance and Role of Employment Law in the Crisis, Zurich/St. Gallen 2022.

Brief expert opinion on: Relationship between CLA and CLA addendum in terms of sick pay for employees, on behalf of social partners in the cultural sector.

Report on sub-issues of the CLA on staff leasing, commissioned by an employee organization, Bern 2013.

Die Zukunft des sozialen Dialogs und des Tripartismus vor dem Hintergrund der Digitalisierung der Wirtschaft, Geneva/Bern/Basel 2018 (together with Anne Meier/Zoé Zeiler).

Le futur du dialogue social et du tripartisme dans le contexte de la digitalisation de l'économie, Geneva/Berne/Basel 2018 (together with Anne Meier/Zoé Zeiler).

Right to good work and good pay - even in the low-wage sector, FHNW conference: Low-wage work on the move, Olten

Labor law in public procurement, Public Procurement Conference 22 - Institute for Swiss and International Construction Law, Zurich

Collective employment agreements in the world of collective labor law - a classification, GAV-Vollzugstagung 2022, Olten

Introductory lecture on the question of social Europe, Denknetz: Social Europe?, Zurich

Collaborations in the fight against abuse - necessity and limits, CLA enforcement conference 2021, combating abuse, Solothurn (online)

Les effets de la digitalisation sur le partenariat social, Work in the Digital Era - Legal Challenges, XIII European Regional Congress of the International Society for Labour and Social Security Law, Lisbon (online)

Home-Office - eine arbeitsrechtliche Herausforderung, Workshop Digitale Transformation und industrielle Beziehungen in der Schweiz, Seminar für Soziologie, Basel

Autonomy and the need for more democracy in the word of work, 18th International Conference in Commemoration of Prof Marco Biagi - Beyond Employment: Protecting Autonomous Work, Online Conference, Modena (online)

Work from home - legal aspects, Syndicom office hour, Zurich

Posting and posting law - current issues, Recht aktuell - 4th Basel Employment Law Conference, Basel

How can social dialogue contribute to the enhancement of gig workers' rights? SNIS Project Final Conference - Gig economy and its Implications for Social Dialogue and Workers' Protection. Main outcomes from a cross-national comparative research project in Switzerland, Germany, Greece and United Kingdom, with Jean-Michel Bonvin, Nicola Cianferoni and Luca Perrig, Geneva

Possible risks of ECJ case law on accompanying measures in Europe in the case of postings, SBA international workshop on European strategies in the fight against wage dumping and EU interventions on national aid, Bern

Les effets de la digitalisation sur le partenariat social, Colloque - L'oit et le droit social en suisse : 100 ans et après?, ILO_OIT_Geneva

Digital delocalizations and collective labor rights, Interdisciplinary research seminars on WORK, first semester 2019, to mark the 100th anniversary of the ILO (1919-2019), organized by the Contact Group FNRS - work and social emancipation - Working paper for the subject "the present role of spatial dimension in the (re)composition of work relationships", with Anne Meier, Leuven

Democratization of the world of work through digitalization - What does this mean for participation and social partnership?, Labour Law, Brussels

Private law employment contract and CLA/collective bargaining agreement as an instrument for safeguarding health in the workplace, ASIM, University Hospital Basel

The Swiss posted workers Act and free movement of services between Switzerland and the EU, UCL Labour Rights Institute event, London

The protection against anti-union, abusive dismissals under the ECHR, SGB Lawyers Conference, Bern

Significance of the ECHR for labor law, continuing education Berner Justiz, Bern

Integration of labor and social rights into the ECHR through interpretation - necessity, justification, practical significance, 7th Winterthur Business Law Day, Winterthur

Current case law of the ECJ on labor law: significance for Switzerland, lunchtime lecture series, Institute for European Global Studies of the University of Zurich, Zurich

Participation of employees as a human right - fundamental and contractual considerations, 4th Winterthur Labor Law Conference, ZHAW, Winterthur

Abusive dismissal: Sanction not much of a deterrent, Conference of the Swiss Federation of Trade Unions (SGB), Bern