Direct search for multi-nucleon clustering in nuclear interactions —Evidence at ultra-relativistic energyDipak Ghosh, Argha Deb, Sushmita Ghosh, Souvik Prasad and Ishita DuttaEurophys. Lett., 60 1 (2002) 40-45DOI: https://doi.org/10.1209/epl/i2002-00315-2