@article{MM2_1993__78_4_155801,
     author = {Karl Friedrich Siburg},
     title = {Symplectic capacities in two dimensions.},
     journal = {Manuscripta mathematica},
     pages = {149--164},
     publisher = {mathdoc},
     volume = {78},
     number = {4},
     year = {1993},
     zbl = {0791.58043},
     url = {http://geodesic.mathdoc.fr/item/MM2_1993__78_4_155801/}
}