Hentschel and Weydt 1990

Hentschel, Elke & Harald Weydt. 1990. Handbuch der deutschen Grammatik. Berlin—New York: de Gruyter.

@book{kortmannadverbial-Hentschel1990,
  address   = {Berlin—New York},
  author    = {Hentschel, Elke and Weydt, Harald},
  publisher = {de Gruyter},
  title     = {Handbuch der deutschen Grammatik},
  year      = {1990}
}