Weck, J., and E. F. Brunig. “An Improved CVP-Index for the Delimination of the Potential Productivity Zones of the Forest Lands of India”. Indian Forester 96, no. 8 (August 1, 1970): 555–572. Accessed February 17, 2026. https://indianforester.co.in/index.php/indianforester/article/view/26297.