S. Papadimitriou, J. Sun, и C. Faloutsos. Proceedings of the 31st international conference on Very large data bases, стр. 697--708. VLDB Endowment, (2005)
Y. Chen, G. Dong, J. Han, B. Wah, и J. Wang. Proceedings of the 28th international conference on Very Large Data Bases, стр. 323--334. VLDB Endowment, (2002)