@article{10_4064_cm125_1_1,
     author = {Mohammed Hichem Mortad},
     title = {Exponentials of normal operators and commutativity of operators: a new approach},
     journal = {Colloquium Mathematicum},
     pages = {1--6},
     publisher = {mathdoc},
     volume = {125},
     number = {1},
     year = {2011},
     doi = {10.4064/cm125-1-1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm125-1-1/}
}