[en] It is shown that quasi-diffractive processes play a decisive role in the neutrals H⁰ and H⁺ dibaryons creation (M_D⁺=1700_-76⁺⁵⁰⁰, 1250_-76⁺⁵⁰⁰ MeV/c² and M_D⁺=1350_-85⁺⁴⁵⁰ MeV/c², respectively). A review is made of summary results from a number of papers where some convincing candidates for stable S=-2 H dibaryons have been revealed. The results were obtained on photographs of the JINR 2 m propane bubble chamber exposed to a 10 GeV/c proton beam. A thorough analysis of the available detection techniques and data analysis procedures has convinced that at the present reconnaissance stage the propane bubble chamber technique is adequate to the physical problem. The first results obtained suggest confidence in successful realization of investigations in the future