@article{GDZPPN002409747, title = {Deformations of Some ...-Structures.}, journal = {Mathematische Zeitschrift}, volume = {121}, year = {1971}, pages = {56-60}, zbl = {0223.53045}, url = {http://dml.mathdoc.fr/item/GDZPPN002409747} }
Srinivasacharyulu, Kilambi. Deformations of Some ...-Structures.. Mathematische Zeitschrift, Tome 121 (1971) pp. 56-60. http://gdmltest.u-ga.fr/item/GDZPPN002409747/