@article{TSG_2003-2004__22__25_0,
     author = {Babenko, Ivan K.},
     title = {G\'eom\'etrie systolique des vari\'et\'es de groupe fondamental $\mathbf {Z}^2$},
     journal = {S\'eminaire de th\'eorie spectrale et g\'eom\'etrie},
     pages = {25--52},
     publisher = {Institut Fourier},
     address = {Grenoble},
     volume = {22},
     year = {2003-2004},
     mrnumber = {2136133},
     zbl = {1083.53042},
     language = {fr},
     url = {http://archive.numdam.org/item/TSG_2003-2004__22__25_0/}
}