@article{ARM_2009_45_1_a6,
     author = {K\k{e}dra, Jarek},
     title = {Fundamental group of $\operatorname{Symp}(M,\omega )$ with no circle action},
     journal = {Archivum mathematicum},
     pages = {75--78},
     year = {2009},
     volume = {45},
     number = {1},
     mrnumber = {2591663},
     zbl = {1212.57016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/ARM_2009_45_1_a6/}
}