If you are stack-checking and cannot locate a cite/authority, check with a reference librarian. If the item is not available on campus, submit it as an "Authority Not Found" (ANF) to the editor above you. The Publications Editor for your journal should compile a single list of ANF's and submit them for further research or interlibrary loan requesting. That list can be submitted to a reference librarian or directly to the Interlibrary Loan Specialist at the Law Library.
If you are working on your own research project and need something that you cannot find, you can either consult with a reference librarian or submit an interlibrary loan request. You can find the Interlibrary Loan tile on MyUTLaw:
If you need to retrieve a patent or documents associated with a patent, Google Patents is probably your best place to start. Searching with the patent number itself is generally the most successful. Once you have found the patent you are looking for, click "Download PDF" to download the original patent document.
Patent searching and related research can be highly specialized. I highly recommend Georgetown Law's Patent Law Research Guide and chapter 11 of Penny Hazleton's Specialized Legal Research (available to check out from Secured Reserve in the Law Library).
The easiest way to find law review articles, assuming you have the author and title of the article, is simply to copy and paste the author and title into the library's Discovery search box on the law library home page. Almost any article should be retrieved and links to full text displayed. Keep in mind that this works with the author's name and the article title, but not with the formal citation (the alphanumeric part) to the article.
If this doesn't work, try using the citation linker. Enter the title of the journal and the year of publication into the citation linker to see where to find the article in full text online.
Lexis and Westlaw may be the best places to find very recently published articles.
You can also try the library catalog to see if we have the article in print. Do a title or keyword search for the title of the journal (not the article).
For current bills, laws, committee reports, and other Congressional documents, the Federal Digital System (FDSys) is the best place to start, especially if you have a citation to begin with. For older materials, and a broader selection, use the subscription database ProQuest Congressional. FDSys also has current federal administrative materials, such as the CFR and the Federal Register. For older federal administrative materials, as well as some older legislative materials (such as a complete PDF run of the Congressional Record), use Hein Online.
Hein Online also has an extensive collection of PDF images of state attorney general opinions, as well as federal attorney general opinions. The most current and recent attorney general opinions for any jurisdiction can usually be found on their respective websites.
The Cardiff Index to Legal Abbreviations is a great online resource. Print resources that can help you figure out a case citation include the Bieber Dictionary of Legal Abbreviations and T.1 of your Bluebook -- assuming you know the jurisdiction the case came from.
The Bieber Dictionary is available to check out from Secured Reserve in the Law Library, or just stop by the Reference Desk and you can use the reference copy there.
If you can't find the text of an opinion on Lexis or Westlaw, you do still have more options! LLMC Digital has an extensive library of older state, federal, and UK and commonwealth cases. Keep in mind that you may also find old statutes and similar materials here. These are all in PDF of the original image. The easiest way to access LLMC Digital is via the library catalog (link below).
For older English cases, the Hein Online English Reports database is incredibly helpful. You can look up a case by case name, nominative reporter citation, or English Reports citation.
Hein online has several other databases that may prove useful to you: Canada Supreme Court Reports, Early American Case Law, The U.S. Supreme Court Library (for PDF's of the official publication of United States Supreme Court cases), and State Reports: A Historical Archive.
Google Books has digitized many older case reporters and you may be able to find cases there.
Finally, the Law Library has an excellent collection of older print reporters. State reporters will typically be on the fourth floor, and federal reporters could be on either the second or third floor. Foreign cases (primarily UK and other commonwealth countries) will be found on the third floor. Just search the library catalog for the title of the reporter. Don't hesitate to ask for help if you need it!
You can try the Library's Discovery search box, but it may not be quite as effective for non-law related materials. The citation linker is an excellent way to find non-law materials online. Also, don't forget that both Lexis and Westlaw have significant non-law coverage, especially for more recent items and newspapers. Finally, the reference librarians at Hodges are extremely helpful and have more experience using non-law sources than your friendly law librarians do, so don't be shy about reaching out to them.