TY - DATA AU - Arne Dür TI - Möbius Functions, Incidence Algebras and Power Series Representations T2 - Lecture Notes in Mathematics SN - 9783540398189 PY - 1986/// CY - Heidelberg PB - Springer Berlin KW - Mathematics and Statistics UR - https://doi.org/10.1007/BFb0077472 ER -