X-ray spectroscopy and photometry of the long-period polar AI Trianguli with XMM-NewtonI. Traulsen, K. Reinsch, R. Schwarz, S. Dreizler, K. Beuermann, A. D. Schwope and V. BurwitzA&A, 516 (2010) A76DOI: https://doi.org/10.1051/0004-6361/200913201