المؤلفون: J. E. Beget, C. J. Nye, K. W. Bean
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::ad042dbab239ff42014a2fc017b7581fhttps://doi.org/10.14509/2679
المؤلفون: V. S. McConnell, J. E. Beget, A. L. Roach, K. W. Bean, C. J. Nye
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::c51acb16d318aa0817c67481acd6f1fchttps://doi.org/10.14509/2576