Issledovanie operat︠s︡iĭ  i ASU : respublikanskiĭ  mezhduvedomstvennyĭ nauchnyĭ sbornik.
Erickson, John,1929-2002,former owner.StEdNL
Erickson, Ljubica,former owner.StEdNL
John and Ljubica Erickson collection.