Gottlob, G., Leone, N., & Veith, H. (1995). Second Order Logic and the Weak Exponential Hierarchies. Springer.
芝加哥风格引文Gottlob, G., N. Leone, 与 H. Veith. Second Order Logic and the Weak Exponential Hierarchies. Springer, 1995.
MLA引文Gottlob, G., et al. Second Order Logic and the Weak Exponential Hierarchies. Springer, 1995.
警告：这些引文格式不一定是100％准确.