Grokker provides federated content access to libraries and enterprises, presenting results in topically organized visual formats that make it easier to conduct actionable research across broad fields of inquiry.
Portail officiel du groupe Afnor : élaboration, homologation et vente de normes, information, formation, conseil, certification de produits, services, systèmes
PubMed Central (PMC) is a free digital archive of biomedical and life sciences journal literature. It is developed and managed by the National Center for Biotechnology Information (NCBI) at the U.S. National Library of Medicine (NLM).