Results of sintering and properties of sinter made from the charge, prepared with the use of surface-active agents - A. S. Nesterov; V. S. Jakushev; M. G. Boldenko; L. I. Garmash; A. D. Dzhigota; V. T. Agapova; A. G. Shishatskij; Ju. V. Pitsyk (Fundamental and applied problems of ferrous metallurgy, 2012)