IK db. Obituary in Fitologija (Bulgaria), 48: 87-91 (1996). He published new names usually as 'N. Andreev' but there are articles by him as 'N.A. Nikolov'.
Example of Name Published
Myosotis jordanovii N. Andreev & D. Peev in Fl. Nar. Republ. Bulgariya, 9: 506, 198 (1989). Odontites verna subsp. salina (Kotov) N. Andreev in Fl. Republ. Bulgariya, 10: 244 (1995).