@misc{retractable+roofs+in+engineering+education, author = {Pawlak-Jakubowska, Anita and Romaniak, Krystyna}, title = {Retractable roofs in engineering education}, journal = {Technical Transactions}, address = {Kraków}, publisher = {Wydawnictwo Politechniki Krakowskiej}, date = {2020}, number = {Vol. 117, iss. 1 } }