Everyone knows and uses Google, many people know about Google Books, not so many people know abut the existence of Google Scholar.
Surely some of you have used it, but in my daily work, searching for information and documents, I realize that many others do not know.
Google Scholar is a very useful tool to search for scholarly literature in many disciplines and sources such as articles, theses, books, abstracts, etc. It retrieves information from academic publishers, societies, online repositories, universities and other web sites.
The advanced search offers several fields that help you in increasing the accuracy and effectiveness of your searches and the use of operators is allowed.
It's also possible to search for court opinions by selecting Legal opinions and journals on the Google Scholar homepage or in the dropdown menu on the search results page and to choose a specific jurisdiction.
In the results page, documents are ranked weighing the full text of each document, where it was published, who it was written by, as well as how often and how recently it has been cited in other scholarly literature.
The following is an exemple of results page:
In addition to the document, Google Scholar provides other information that may be useful in further research ("Related articles") or in locating a copy of the article (link to the national catalogue ACNP).