1. Stresses and deformations in egg-shaped sludge digestors: discontinuity effects;Zingoni;J Eng Struct,2001
2. Egg-shaped prestressed concrete digestor tanks, Yokohama (Japan);Nojiri;IABSE Periodica,1989
3. Egg-shaped digestor tanks in Matsumoto City (Japan);Aeberhard;IABSE Periodica,1989
4. Egg-shaped anaerobic digestors, Taiwan;Sutter;Struct. Engng. Int.,1994
5. Two egg-shaped digestors, Australia;Jager;Struct. Engng. Int.,1997