@article { author = {Kumar Das, A.}, title = {On group Elements Having Square Roots}, journal = {Bulletin of the Iranian Mathematical Society}, volume = {31}, number = {No. 2}, pages = {33-36}, year = {2011}, publisher = {Iranian Mathematical Society (IMS)}, issn = {1017-060X}, eissn = {1735-8515}, doi = {}, abstract = {}, keywords = {finite group,Projective special linear group}, url = {http://bims.iranjournals.ir/article_95.html}, eprint = {http://bims.iranjournals.ir/article_95_c17a615bb96a3b5ffcdedeea0947f3d6.pdf} }