@article{JOLT_2018_28_1_a6,
     author = {Pierre Julg and Erik van Erp},
     title = {The {Geometry} of the {Osculating} {Nilpotent} {Group} {Structures} of the  {Heisenberg} {Calculus}},
     journal = {Journal of Lie Theory},
     pages = {107--138},
     year = {2018},
     volume = {28},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JOLT_2018_28_1_a6/}
}