@article{IM_1976__34_142393,
     author = {G. Forst},
     title = {Harmonic {Spaces} {Associated} with {Non-Symmetric} {Translation} {Invariant} {Dirichlet} {Forms.}},
     journal = {Inventiones mathematicae},
     pages = {135--150},
     publisher = {mathdoc},
     volume = {34},
     year = {1976},
     zbl = {0329.31008},
     url = {http://geodesic.mathdoc.fr/item/IM_1976__34_142393/}
}