@article{JOLT_2009_19_2_a3,
     author = {C. Vizman},
     title = {Central {Extensions} of {Coverings} of {Symplectomorphism} {Groups}},
     journal = {Journal of Lie Theory},
     pages = {237--249},
     year = {2009},
     volume = {19},
     number = {2},
     doi = {10.5802/jolt.550},
     zbl = {1185.53092},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.550/}
}