@article{10_4153_CJM_1981_113_8,
     author = {Cecchini, C. and Zappa, A.},
     title = {Some {Results} on the {Center} of an {Algebra} of {Operators} on {VN(G)} for the {Heisenberg} group},
     journal = {Canadian journal of mathematics},
     pages = {1469--1486},
     year = {1981},
     volume = {33},
     number = {6},
     doi = {10.4153/CJM-1981-113-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1981-113-8/}
}