Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HAKAMATA Tomoyuki,Evaluation of Cattle Excreta on Pasture Fertility : II. Simulation studies on uneven excretal dispersion caused by a grazing equipment,Japanese Journal of Grassland Science,0447-5933,Japanese Society of Grassland Science,1980,26,2,201-207,https://cir.nii.ac.jp/crid/1390282680730855552,https://doi.org/10.14941/grass.26.201