1. Source of literature and citation search
Google Scholar
Source of literature and citation search
Central Library of Semmelweis University Anna Berhidi 2018/2019 – 1st semester

2. What is Google Scholar? Free search engine from Google
You can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites*
You can find out what publications have cited other publications
At „Advanced Search” platform you can combine your queries, such as terms, authors, publication years
There are duplicate, false, etc. citations, so need to double-check the records – the procedure is time-consuming
Access to full text depends on subscription, because the links go to sites of different publishers, vendors, etc.
*But be aware of predatory publishing:

3. https://scholar.google.com/
More information about Google Scholar

4. Search for keywords/topic (1)
Results list
"irritable bowel syndrome"

5. „Advanced search”

6. Search for keywords/topic (2)
AND
inflammation immunosuppressant
„risk factor”
Exact phrase means ”…”
drug effect OR
tumor tumour
NOT
malignant
2016

7. Cited by (who cited the paper)
Author search

8. Other options
with registration

9. SUMMARY Characteristics Web of Science Core Collection* Scopus
Google Scholar
Indexing
Journals, proceeding publications in mostly English and with impact factor
Journals, books, book chapters, coference publications in many languages
Not indexing because it is a search engine, but we can find journals, dissertations, books, book chapters, etc. in different languages
Document types
Article, review, note, proceedings paper , meeting abstract, letter, editorial material, journal series as book chapters, etc.
Article, review, short survey, book, book chapter, conference paper, letter, etc.
Articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities, etc.
Years covered-documents
From 1975 (Conf. Proc. Cit. Ind.: from 1990, Em. Sour. Cit.: from 2015)
From 1960 (depends on the indexing, you can find bibliographic information back to 1788)
Not revealed / undefinable
Years covered-citations
From 1975 to present
From 1970 to present
Updates
Daily (on weekdays)
Daily
Weekly/6-9 Monthly/Yearly
* Regarding to Semmelweis University

10. Number of the citations: compare the results from Web of Science, Scopus és Google Scholar databases – an example
Sample:
Tuller T., Atar S., Ruppin E., Gurevich M., Achiron A.
Common and specific signatures of gene expression and protein-protein interactions in autoimmune diseases. Genes and Immunity 2013; 14(2):
(Date of the citation search: )
Groups
Number of the citations
Overlapping citations (WoS, Scopus, GS) 31
Overlapping citation (WoS, GS) 1
Overlapping citations (Scopus, GS) 2
Unique citation in Scopus
Unique citations in GS
11*
*Records from GS: 3 English journal articles (one of them cites incorrectly), 1 Chinese publication, 7 dissertations
SOME NOTES: Citation numbers in WoS : 32; citation numbers in Scopus: 34; citation numbers in GS: 50 (2 duplicates, 3 non-citations), so after „cleaning”: 45. All citation numbers in the 3 databases after checking, „cleaning”: 46.

11. Thank you for your attention!