Cullen, Helen F.. "A characterization of sets of cardinal ≤ C." Bollettino dell'Unione Matematica Italiana 19.2 (1964): 138-140. <http://eudml.org/doc/195813>.
@article{Cullen1964, author = {Cullen, Helen F.}, journal = {Bollettino dell'Unione Matematica Italiana}, keywords = {set theory}, language = {eng}, month = {6}, number = {2}, pages = {138-140}, publisher = {Zanichelli}, title = {A characterization of sets of cardinal ≤ C}, url = {http://eudml.org/doc/195813}, volume = {19}, year = {1964}, }
TY - JOUR AU - Cullen, Helen F. TI - A characterization of sets of cardinal ≤ C JO - Bollettino dell'Unione Matematica Italiana DA - 1964/6// PB - Zanichelli VL - 19 IS - 2 SP - 138 EP - 140 LA - eng KW - set theory UR - http://eudml.org/doc/195813 ER -