{{cite journal | last1=Zhang | first1=X. | author2=H. Ma | author3=D. Lü | author4=S. Qin | author5=G. Du | author6=G. Liu | year=2015 | title=THE EFFECT OF PROTECTION FILM ON THE ADAPTATION OF ‘HANFU’ APPLE TREES UNDER LOW TEMPERATURE | journal=Journal of Animal and Plant Sciences | volume=25 | issue=3 | pages=220-225 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2015-JAPS-333}}