@article{10_4064__27_2_309_316,
     author = {Alexander Lopatnikov},
     title = {Asymptotic expansion of the heat kernel for a class of hypoelliptic operators},
     journal = {Banach Center Publications},
     pages = {309--316},
     publisher = {mathdoc},
     volume = {27},
     number = {2},
     year = {1992},
     doi = {10.4064/-27-2-309-316},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/-27-2-309-316/}
}