http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
proceedings of the conference jointly organized by the Mathematical Institute of the Polish Academy of Sciences and the Institute of Mathematics of the Adam Mickiewicz University, held in Poznan, 22-26 August, 1972
Conference on Approximation Theory (1972 : Posen)
Instytut Matematyczny (Polska Akademia Nauk)
Uniwersytet im. Adama Mickiewicza w Poznaniu
edited by Zbigniew Ciesielski and Julian Musielak.