@article{107319, author = {Vladim\'\i r Vetch\'y}, title = {Estimation of the index of $G^2$}, journal = {Archivum Mathematicum}, volume = {024}, year = {1988}, pages = {123-136}, zbl = {0665.05030}, mrnumber = {983230}, language = {en}, url = {http://dml.mathdoc.fr/item/107319} }
Vetchý, Vladimír. Estimation of the index of $G^2$. Archivum Mathematicum, Tome 024 (1988) pp. 123-136. http://gdmltest.u-ga.fr/item/107319/
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