Peter D. Karp, Monica Riley, Milton H. Saier Jr., Ian T. Paulsen, Julio Collado-Vides, Suzanne M. Paley, Alida Pellegrini-Toole, César Bonavides-Martínez, Socorro Gama-Castro. The EcoCyc Database. Nucleic Acids Research, 30(1):56-58, 2002.
Abstract is missing.