2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/145895A short review on charmed and beauty hadron production in the lepton deep inelastic scattering off proton, in proton-proton and proton-antiproton collisions at high energies is presented. It is shown that the existing theoretical and experimental information on charmed and beauty quark distributions in a proton is not satisfactory. A some procedure to study these distributions at LHC energies is suggested.7 pages, 1 figure. Talk given at the HADRON STRUCTURE '07 International Conference, Bratislava, Slovakia, September 3-7, 2007High Energy Physics - Phenomenologytext