Access controls on bmj.com: Dual models are possible
AUTOR(ES)
Eysenbach, Gunther
FONTE
BMJ Publishing Group Ltd.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=558060Documentos Relacionados
- Access controls on bmj.com: Restore true open access to bmj.com
- Access controls on bmj.com: Where's the evidence for restricting access?
- Access controls on bmj.com: List of countries with free access seems incomplete
- Access controls on bmj.com: Enable accessibility and avoid formation of two tier journal
- BMJ.com: toll-free no more