@article{PismaZhETF.33.176, title = {Grassmann analyticity and extension of supersymmetry}, author = {Gal'perin, A. and Ivanov, E. and Ogievetskii, V.}, journal = {πΙΣΨΝΑ Χ φότζ}, volume = {33}, issue = {3}, pages = {176}, year = {1981}, doi = {}, url = {http://jetpletters.ru/ps/0/article_22965.shtml}, }