@article{1093891706,
author = {Chapin, E. William},
title = {Set-valued set theory. II.},
journal = {Notre Dame J. Formal Logic},
volume = {16},
number = {1},
year = {1975},
pages = { 255-267},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891706}
}
Chapin, E. William. Set-valued set theory. II.. Notre Dame J. Formal Logic, Tome 16 (1975) no. 1, pp. 255-267. http://gdmltest.u-ga.fr/item/1093891706/