{{cite journal | last1=Lu | first1=Y. | author2=Y. Liu | author3=Y. Sun | author4=J. Mu | author5=M. Ren | author6=X. Zhang | author7=Z. Wang The Graduate School of Chinese Academy of Agricultural Sciences | author8=Beijing | author9=P.R. China | year=2013 | title=MOLECULAR CLONING AND ANALYSIS OF A CONSTANS HOMOLOG FROM NICOTIANA TABACUM | journal=Journal of Animal and Plant Sciences | volume=23 | issue=5 | pages=1360-1365 | issn=1018-7081 | eissn=2309-8694 | publisher=Pakistan Agricultural Scientists Forum | url=https://thejaps.org.pk/AbstractView.aspx?mid=2013-JAPS-523}}