  We have observed superconductivity in heavy p-doped Ge by measuring of
differential resistance dV/dI(V) of Ge - PtIr point contacts. The
superconducting (SC) features disappear above 6 K or above 1 T, what can be
taken as the critical temperature and the critical magnetic field,
respectively. The observed dV/dI(V) spectrum with Andreev reflection like
features was fitted within one-gap Blonder-Tinkham-Klapwijk model. The
extracted SC gap demonstrates Bardeen-Cooper-Schrieffer-like behavior with 2
Delta/kBTc = 10+/-1 ratio, which is much higher that expected for conventional
superconductors. Magnetic field suppresses Andreev reflection features, but the
SC gap moderately decreases in magnetic field similarly as it was observed
previously for the type-II superconductors, including nickel borocarbide and
iron-based superconductors. Curiously, we have not yet observed
superconductivity in n-doped Ge with a similar dopant concentration.
