@article{1093894002,
author = {Dorrough, Douglas C.},
title = {A logical calculus of analogy involving functions of order $2$.},
journal = {Notre Dame J. Formal Logic},
volume = {11},
number = {1},
year = {1970},
pages = { 321-336},
language = {en},
url = {http://dml.mathdoc.fr/item/1093894002}
}
Dorrough, Douglas C. A logical calculus of analogy involving functions of order $2$.. Notre Dame J. Formal Logic, Tome 11 (1970) no. 1, pp. 321-336. http://gdmltest.u-ga.fr/item/1093894002/