Marttila, H. J., Marjamäki, M., Vyshnevskaya, E., Vyshnevskiy, B. I., Otten, T. F., Vasilyef, A. V., & Viljanen, M. K. (1999). pncA Mutations in Pyrazinamide-Resistant Mycobacterium tuberculosis Isolates from Northwestern Russia. American Society for Microbiology.

Marttila, Harri J., Merja Marjamäki, Elena Vyshnevskaya, Boris I. Vyshnevskiy, Tatjana F. Otten, Alexandr V. Vasilyef, i Matti K. Viljanen. PncA Mutations in Pyrazinamide-Resistant Mycobacterium Tuberculosis Isolates From Northwestern Russia. American Society for Microbiology, 1999.

Marttila, Harri J., et al. PncA Mutations in Pyrazinamide-Resistant Mycobacterium Tuberculosis Isolates From Northwestern Russia. American Society for Microbiology, 1999.