@article{ARM_2008__44_1_a1,
     author = {Ansari-Toroghy, H. and Farshadifar, F.},
     title = {On endomorphisms of multiplication and~comultiplication modules},
     journal = {Archivum mathematicum},
     pages = {9--15},
     publisher = {mathdoc},
     volume = {44},
     number = {1},
     year = {2008},
     mrnumber = {2431226},
     zbl = {1212.13006},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2008__44_1_a1/}
}