LJS Publisher Editorial Board Information for Authors Submitting Materials... Issues Curent Issue Links The International Standard Serial Number is obtained from Romanian National Bibliotheca: http://www.bibnat.ro LJS - Leonardo Journal of Sciences is an international journal published by AcademicDirect.Org electronically at the address http://ljs.academicdirect.org/. It has a periodicity of two issues by year. Publish works from all science and engineering fields related to computers using. Publishing is free of charge. Young scientists are encouraged to send original contributions for publishing. The journal publish online: http://ljs.academicdirect.org/