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Open AccessEditorial
Molecules 2009, 14(6), 2254-2255;

Full Open Access Journals Have Increased Impact Factors

Molecular Diversity Preservation International (MDPI), Matthaeusstrasse 11, CH-4057 Basel, Switzerland; Tel. +41-79 322 3379; Fax: +41-61 302 8918; E-mail:;
Received: 20 June 2009 / Published: 22 June 2009
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We are pleased to report the increase of the impact factors of MDPI journals during 2007 and 2008. In 2005 and part of 2006, the use of a two tier publication system, whereby we offered full Open Access publication to those authors willing to contribute financially to support this option, while providing the alternative choice of free publication without Open Access for those authors who preferred not to pay, resulted in the obviously decreased impact factors seen in 2006 [...] View Full-Text

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Lin, S.-K. Full Open Access Journals Have Increased Impact Factors. Molecules 2009, 14, 2254-2255.

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