Indexing of a journal is considered a reflection of its quality. Indexed journals are considered to be of higher scientific quality as compared to non-indexed journals.
Science Publishing Group (SciencePG) is an open access publisher. So the full text of all the papers is immediately available to everyone without registration or subscription when published.
All journals published by SciencePG are indexed by WorldCat, Researchbib, AcademicKeys, Electronic Journals Library, Elektronische Zeitschriftenbibliothek, Polish Scholarly Bibliography, Directory of Research Journal Indexing, Zeitschriftendatenbank, Wissenschaftszentrum Berlin, JournalSeek.
SciencePG takes part in CrossRef, allowing direct linking from citations to a paper elsewhere to the full text of that paper in a SciencePG journal.
SciencePG works closely with discipline-specific indexing services to ensure our journals are widely indexed. All papers in mathematical journals published by SciencePG are included immediately in Zentralblatt Math. SciencePG works closely with CAS Source Index for materials, physics and chemistry, life sciences and environment, MIAR for social science journals, as well as many other services.