erc:
who: La Haye, R. J.
what: Limits on m = 2, n = 1 error field induced locked mode instability in TPX with typical sources of poloidal field coil error field and a prototype correction coil, ``C-coil``
when: 19921201
where: https://digital.library.unt.edu/ark:/67531/metadc1385178/