@article{10_21136_CMJ_1985_102032,
     author = {Kock, Anders},
     title = {Combinatorics of non-holonomous jets},
     journal = {Czechoslovak Mathematical Journal},
     pages = {419--428},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1985},
     doi = {10.21136/CMJ.1985.102032},
     mrnumber = {803037},
     zbl = {0594.18010},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1985.102032/}
}