@article{paperid:513, author = {Rajabzadeh Moghaddam, Mohammad Reza and علیرضا سالمکار and Chiti, Kazem}, title = {Some properties on the Schur multiplier of a pair of groups}, journal = {Journal of Algebra}, year = {2007}, volume = {312}, number = {1}, month = {June}, issn = {0021-8693}, pages = {1--8}, numpages = {7}, keywords = {Schur-multiplier; Relative central extension; Covering pair; Pair of groups}, }