BNA Tax Management Portfolios are in-depth, specialized compendia of tax topics.
The BNA Tax and Accounting Center database has information about federal taxes; estates, gifts and trusts; and international tax issues. Can be used onsite in the library or remotely where there's an Internet connection. Please Note: Links within the database that are greyed out are not available to academic users (not part of BGSU's subscription) as shown in this screen shot.
BNA Tax and Accounting Center database has information about foreign tax issues.
Often references or footnotes in a book or in the Tax Management Portfolios will cite either laws or court cases. You could find out more about a cited law or tax case in a variety of sources:
Nexis Uni database For example, Opperwall v. Commr., 105 F.3rd 666 (9th Cir, 1997).
Proquest Congressional database For example H.R. Rep No. 841, 99th Cong., 2nd Sess. II-49 (1986)