1. On plastic design of complex machine parts;Szczepiński;Int. J. Mech. Sci.,1976
2. Statically admissible stress fields for plastic design of connections of steel structures;Szczepiński;IFTR Reports No. 44,1977
3. Plastic design of connections of steel structures by tensorial superimpose of two stress fields;Szlagowski;Engng Trans.,1981
4. Algorithm of tensorial superimpose of many stress sites;Spólnicki;IFTR Reports No. 36,1980
5. Statically admissible stress fields for plastic design;Szczepiński;IFTR Reports Nos 3, 9, 11, 20, 21,1976