The Josephson plasma resonance in in a tilted fieldS. P. Bayrakci, Ophelia K. C. Tsui, N. P. Ong, K. Kishio and S. WatauchiEurophys. Lett., 46 1 (1999) 68-74DOI: https://doi.org/10.1209/epl/i1999-00564-y