Nikitin, Sholmov: "An external sorting algorithm for magnetic tape using optimal merge trees"; Ermachenko: "On some principles of building an information system"; Arefiev et al: "Implementing a process of building formulae index for "Chemistry" Abstract Journal on BESM-4"; Legon'kov: "On segmentation of increment value in two-dimentional problems of mathematical physics solved by explicit difference methods using computer"; Zubov, Lazarova: "On classification of external sorting methods"; Sarv, Heinla: "A questionnarie system for economical data processing"

"A questionnarie system for economical data processing"