@article{ASNSP_1983_4_10_3_493_0, author = {Forti, Marco and Honsell, Furio}, title = {Set theory with free construction principles}, journal = {Annali della Scuola Normale Superiore di Pisa - Classe di Scienze}, pages = {493--522}, publisher = {Scuola normale superiore}, volume = {Ser. 4, 10}, number = {3}, year = {1983}, mrnumber = {739920}, zbl = {0541.03032}, language = {en}, url = {http://www.numdam.org./item/ASNSP_1983_4_10_3_493_0/} }