A portable compiler for microcomputers. - Boyan Yankov; Stoyan Bonev; Lilyan Nikolov (Microprocessing and Microprogramming, 1985)

Design and implementation of a portable kernel for real-time applications. - Lilyan Nikolov; Ivan Kovashki (Microprocess. Microprogramming, 1987)

Teaching operating system at the technical university-Sofia. - Lilyan Nikolov (CompSysTech, 2003)