1. Dimensionless stress intensity factors for cracked thick cylinders under polynomial crack face loadings
2. Stress intensity factors for thick-walled cylinders
3. T. Poston and I. Stewart, The theory of catastrophes and its applications (Moscow: Mir, 1980), p. 608.
4. T. Poston and I. Stewart, Catastrophe Theory and Its Applications (London, San Francisco, Melbourne: Pitman, 1978).
5. R. Gilmore, Applied theory of catastrophes, 1 (Mir, 1984), p. 350;