http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
structure and universal algebraic problems
edited by G. Pollak, St. Schwarz and O. Steinfeld.
"The 11th conference in Szeged of the Janos Bolyai Mathematical Society was held from August 24 to 28, 1981."
Colloquia mathematica Societatis János Bolyai ; 39