Teodosiev, Dimitar, Anna Bouzekova-Penkova, Silviya Simeonova, and Nikolay Grozev. “Contact Angle and AFM Analysis of Glassy Carbon Coatings After an Extended Stay on the International Space Station (ISS)”. Proceedings of the Bulgarian Academy of Sciences 76, no. 2 (February 26, 2023): 256–263. Accessed March 24, 2023. https://proceedings.bas.bg/index.php/cr/article/view/256.