@article{GDZPPN002301989, title = {On Invariants with the Novikov Additive Property.}, journal = {Mathematische Annalen}, volume = {189}, year = {1970}, pages = {65-77}, zbl = {0201.25701}, url = {http://dml.mathdoc.fr/item/GDZPPN002301989} }
JÄNICH, K. On Invariants with the Novikov Additive Property.. Mathematische Annalen, Tome 189 (1970) pp. 65-77. http://gdmltest.u-ga.fr/item/GDZPPN002301989/