Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Jason D. Lemp and Kara M. Kockelman and Avinash Unnikrishnan,Analysis of large truck crash severity using heteroskedastic ordered probit models,Accident Analysis & Prevention,0001-4575,Elsevier BV,2011-01,43,1,370-380,https://cir.nii.ac.jp/crid/1361137044564215936,https://doi.org/10.1016/j.aap.2010.09.006