The K-band spectrum of the cataclysmic variable RXJ 0502.8+1624 (Tau 4) S. P. Littlefair, V. S. Dhillon and E. L. Martín A&A, 437 2 (2005) 637-639 Published online: 21 June 2005 DOI: 10.1051/0004-6361:20052780