1. Thin-walled Elastic Beams;Vlasov,1961
2. Torsional vibrations of beams of thin-walled open section;Gere;Journal of Applied Mechanics,1954
3. Torsional vibrations and stability of thin-walled beams of open section resting on continuous elastic foundation;Rao,1975
4. Torsional vibrations of thin-walled bars with bisymmetric cross-section (in Polish);Szymczak;Rozprawy Inzynierskie,1978
5. On torsion of I-beams with web of variable height;Hamaychi,1961