Yano-Koonin-Podgoretski ĭ parametrisation of the Hanbury Brown-Twiss correlator Y.-F. Wu U. Heinz, B. Tomášik and U.A. WiedemannEur. Phys. J. C, 1 3/4 (1998) 599-617DOI: https://doi.org/10.1007/s100520050109