@article{PM_2005_2005_1_a21,
     author = {Dungey, Nick},
     title = {Kernel del calor y estimaciones de semigrupos para sublaplacianos con t\'ermino de deriva sobre grupos de {Lie.}},
     journal = {Publicacions matem\`atiques},
     pages = {375-391},
     publisher = {mathdoc},
     volume = {49},
     number = {2},
     year = {2005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PM_2005_2005_1_a21/}
}