CDIAC communications [elektronický zdroj]. Oak Ridge, TN : Carbon Dioxide Information Analysis Center. HTML and PDF format. Mode of access: Internet at the CDIAC web site. Address as of 5/15/03: http://cdiac.esd.ornl.gov/newsletr/ccindex.html; current access available via PURL. Dostupné na internetu: <http://sfx.jib.cz/sfxlcl3?url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&rfr_id=info:sid/sfxit.com:opac_856&url_ctx_fmt=info:ofi/fmt:kev:mtx:ctx&sfx.ignore_date_threshold=1&rft.object_id=954928612196&svc_val_fmt=info:ofi/fmt:kev:mtx:sch_svc&>