found: Kokkonen, J. Music for string orchestra [SR] p1991:label (Monica Groop, mezzo-soprano) booklet, p. 7 (b. 1958)
found: Schubert, F. Messe As-Dur, D 678, p1997:insert (Monica Groop, alto)
found: Int. ww in mus., 19th ed.(Groop, Monica; b. Apr. 4, 1958, Helsinki, Finland; mezzo-soprano)
found: Donizetti, G. Linda di Chamounix [SR] p1993:container (Monika Groop) booklet (Monika Groop; Monica Groop; Finnish mezzo-soprano)
found: Sibelius, J. Kullervo [SR] p2006:container (Monica Group, mezzo-soprano; Monica Groop)