@article{CRMATH_2021__359_5_631_0,
     author = {Rismanchian, Mohammad Reza},
     title = {Group extensions and marginal series of pair of groups},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {631--638},
     publisher = {Acad\'emie des sciences, Paris},
     volume = {359},
     number = {5},
     year = {2021},
     doi = {10.5802/crmath.212},
     language = {en},
     url = {http://www.numdam.org/articles/10.5802/crmath.212/}
}