Depth first generation of long patterns. - Ramesh C. Agarwal; Charu C. Aggarwal; V. V. V. Prasad (KDD, 2000)

A Tree Projection Algorithm for Generation of Frequent Item Sets. - Ramesh C. Agarwal; Charu C. Aggarwal; V. V. V. Prasad (J. Parallel Distributed Comput., 2001)