Reasons and reflections on zero citation of scientific and technological papers:Taking China Environmental Science and Environmental Sciences as examples
3Weale AR, Bailey M, Lear PA. The level of non-citation of articles within a journal as a measure of quality : a comparison to the impact factor. BMC Medical Research Methodology, 2004, (4) : 14 - 21 [2010-12-18]. http://www, biomedcentral, com/1471 -2288/4/14.
4Garfield E. The history and meaning of the journal impact factor. JAMA ,2006,295( 1 ) :90 - 93.
