{{cite journal | last1=Korkmaz | first1=M. | author2=F. Üçkarde_and A. Kaygisiz | year=2011 | title=COMPARISON OF WOOD, GAINES, PARABOLIC, HAYASHI, DHANNO AND POLYNOMIAL MODELS FOR LACTATION SEASON CURVE OF SIMMENTAL COWS | journal=Journal of Animal and Plant Sciences | volume=21 | issue=3 | pages=448-458 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2011-JAPS-303}}