TY - DATA AU - P.L. Butzer; E. Gärlich; B. Szökefalvi-Nagy TI - Functional Analysis and Approximation SN - 9783034893695 PY - 1981/// PB - Birkhäuser Basel KW - Mathematics and Statistics UR - https://doi.org/10.1007/978-3-0348-9369-5 ER -