There are only three journals specific to the viola:

Journal of the American VIola Society--print only

Journal of the Viola da Gamba Society of America--print and online

Die Viola: Jahrbuch der Internationalen Viola-Forschungsgesellschaft--print issues available from the 1980s; no longer published
[translated: The Viola: yearbook of the International Viola Research Society]

There are also general journals about stringed instruments which encompass viola:
Strings--print and online

American String Teacher--print and online

Print journals are shelved in alphabetical order by journal title on the north end of the Music Library. 

 

We do not have current print issues for journals which are now available online.