Purification and characterization of a thermostable chitinase from Bacillus licheniformis Mb-2 - Aris Toharisman; Maggy Thenawidjaja Suhartono; Margarethe Spindler-Barth; Jae-Kwan Hwang; Yu-Ryang Pyun (World Journal of Microbiology and Biotechnology, 2005)