@article{GDZPPN002298082, title = {Function Systems}, journal = {Mathematische Annalen}, volume = {174}, year = {1967}, pages = {1-16}, zbl = {0163.01403}, url = {http://dml.mathdoc.fr/item/GDZPPN002298082} }
SCHWEIZER, B.; SKLAR, A. Function Systems. Mathematische Annalen, Tome 174 (1967) pp. 1-16. http://gdmltest.u-ga.fr/item/GDZPPN002298082/