@article{paperid:1052428, author = {Niknam, Asadollah and محمود حسنی}, title = {On C0-Group of Linear Operators}, journal = {Journal of Sciences, Islamic Republic of Iran}, year = {2004}, volume = {15}, number = {2}, month = {January}, issn = {1016-1104}, pages = {156--161}, numpages = {5}, keywords = {C0-group of linear operators; Hilbert C*-module; Unitary operator}, }