@article{1270041993, author = {OKAMOTO, Keishi}, title = {Normal Elementary Maps}, journal = {Tokyo J. of Math.}, volume = {21}, number = {2}, year = {1998}, pages = { 153-158}, language = {en}, url = {http://dml.mathdoc.fr/item/1270041993} }
OKAMOTO, Keishi. Normal Elementary Maps. Tokyo J. of Math., Tome 21 (1998) no. 2, pp. 153-158. http://gdmltest.u-ga.fr/item/1270041993/