On kaonic deuterium. Quantum field-theoretic and relativistic covariant approachA. N. Ivanov, M. Cargnelli, M. Faber, H. Fuhrmann, V. A. Ivanova, J. Marton, N. I. Troitskaya and J. ZmeskalEur. Phys. J. A, 23 1 (2005) 79-111DOI: https://doi.org/10.1140/epja/i2004-10055-3