@article{BASM_2013_2_a7,
     author = {Mitrofan M. Choban and Liubomir L. Chiriac},
     title = {On free groups in classes of groups with topologies},
     journal = {Buletinul Academiei de \c{S}tiin\c{t}e a Republicii Moldova. Matematica},
     pages = {61--79},
     publisher = {mathdoc},
     number = {2},
     year = {2013},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/BASM_2013_2_a7/}
}