@article{CRMATH_2005__340_10_715_0,
     author = {Karaev, Mubariz T.},
     title = {On some problems related to {Berezin} symbols},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {715--718},
     publisher = {Elsevier},
     volume = {340},
     number = {10},
     year = {2005},
     doi = {10.1016/j.crma.2005.04.021},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2005.04.021/}
}