Rapp, Lucien and Topka, Maria (2021) Small Satellite Constellations, Infrastructure Shift and Space Market Regulation. In: Legal Aspects Around Satellite Contellations: Volume 2 Froehlich, Annette (ed.) Springer. Series “Studies in Space Policy. vol 31” Cham, Suisse pp. 1-28. ISBN 9783-030713843

Mallowan, Lucas, Rapp, Lucien and Topka, Maria (2021) Reinventing treaty compliant ‘‘safety zones’’ in the context of space sustainability. Journal of space safety engineering, vol.8 (n°2). pp. 155-166.

Rapp, Lucien, Topka, Maria and Mallowan, Lucas (2021) Which jurisdiction for private in-space assembled autonomous platforms? Space Policy, vol. 56 (n° 101413). pp. 2-13.