@article{10_4064_ap86_1_8,
     author = {Beniamino Cappelletti Montano},
     title = {Bi-Legendrian connections},
     journal = {Annales Polonici Mathematici},
     pages = {79--95},
     publisher = {mathdoc},
     volume = {86},
     number = {1},
     year = {2005},
     doi = {10.4064/ap86-1-8},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ap86-1-8/}
}