I. RAVI, F. A. KHAN, P. SHARMA-NATU, and M. C. GHILDIYAL, “Yield response of durum (Triticum durum) and bread wheat (T. aestivum) varieties to carbon dioxide enrichment”, Indian J Agri Sci, vol. 71, no. 7, Apr. 2014, doi: 10.56093/ijas.v71i7.39954.