6M.S.MkhabeL,R.Gordon,D.Burton,et al.The impact ofmanagement practices and meteorological conditions on ammonia and nitrous oxide emissions following application of hog slurry to forage grass in Nova Scotia. Agriculture Ecosystems and Environment . 2009
7N.E.Savin,K.J.White.The Durbin-Watson Test for serial Correlation with Extreme Sample Sizes or Many Regressors. Econometrica . 1977