ISI Web of Knowledge

There are 362 citations for articles published in the journal PP as of June 2016, which increase by 62% compared to 224 citations as of July 2015.

Please click the following link to see the screenshot.

Google Scholar

There are 1402 citations for articles published in PP journal as of March 2017 based on the statistics from Google Scholar.

The 2-year Google-based Journal Impact Factor (2-GJIF) is 0.66.

CABI databases

PP is indexed by CABI, which is one of the 9 databases in the "Web of Science".

Please check the screenshot from Harvard University Library.

PP has been indexed by several world class databases. For more information, please access the following links: