The index of violin music / compiled and edited by Wayne Wilkins.
Magnolia, Ark. : Music Register, 1973, and supplements to 1977
MUSIC Ref ML128.V4 W53
Music for solo violin unaccompanied : a catalogue of published and unpublished works from the seventeenth century to 1989 / compiled by Harry Edlund
High Wycombe, Bucks, England : Peter Marcan Publications, 1989
MUSIC Ref ML128.V4 E35 1989
String music in print / by Margaret K. Farish
New York : R. R. Bowker Co., 1965, and supplements to 1984
MUSIC Ref ML128.S7 F4
American string teacher, v. 8 (1958)- ML27.U5A8356
The Strad, 1991- ML749.5 S773x
M - Scores
M40-44--Solo violin music
M217-223--Music for violin and piano
M1012-1013, M1112-1113--Violin with orchestra and string orchestra (includes full scores and solos with piano arrangements)
ML - Music Literature
ML128.V4--Violin music: Bibliography
ML800-897--Books about the violin
MT - Instruction and Study
MT260-279.7--Methods, etudes, orchestra studies, etc.
Violin and piano music
Concertos (Violin with string orchestra)
Violin with orchestra
...and there are lots more. Do a subject search for "violin" and see the 255 different subject headings that begin with "violin."
... and lots more. Search "violin" in Encore and find more than 300 books, more than 2500 recordings and more than 2200 scores.