@article{1077466822,
author = {Heider, L. J.},
title = {A characterization of function-lattices},
journal = {Duke Math. J.},
volume = {23},
number = {1},
year = {1956},
pages = { 297-301},
language = {en},
url = {http://dml.mathdoc.fr/item/1077466822}
}
Heider, L. J. A characterization of function-lattices. Duke Math. J., Tome 23 (1956) no. 1, pp. 297-301. http://gdmltest.u-ga.fr/item/1077466822/