Maintainers for cernlib-montecarlo are Debian Science Maintainers <debian-science-maintainers@lists.alioth.debian.org>.
You may want to refer to the following packages that are part of the same source: libcojets2-dev, libcojets2-gfortran, libeurodec1-dev, libeurodec1-gfortran, libherwig59-2-dev, libherwig59-2-gfortran, libisajet758-3-dev, libisajet758-3-gfortran, libpdflib804-2-dev, libpdflib804-2-gfortran, libphotos202-1-gfortran, libphotos202-dev, libphtools2-dev, libphtools2-gfortran, montecarlo-base, montecarlo-data.
You might like to refer to the cernlib-montecarlo package page, to the Package Tracking System, or to the source package src:mclibs's bug page.
If you find a bug not listed here, please report it.