@article{10_4064_fm_116_3_143_155, author = {Goeffrey Fox and Pedro Morales}, title = {Extension of group-valued set functions defined on lattices}, journal = {Fundamenta Mathematicae}, pages = {143--155}, publisher = {mathdoc}, volume = {116}, number = {3}, year = {1983}, doi = {10.4064/fm-116-3-143-155}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm-116-3-143-155/} }