International Tax Expert Roberts Dead at 91

Sidney I. Roberts, one of the country's foremost authorities on the complexities of international tax law, died at his home here following a bout with pneumonia. He was 91. Roberts authored some 10 books and countless articles on the tax implications in such areas as overseas stock ownership and dual residences. Roberts & Holland -- the firm he co-founded in 1957 -- evolved into one of the largest international tax firms in the country. He retired as a partner in 1986. In 1967, he co-authored "U.S. Income Taxation of Foreign Corporations and Nonresident Aliens." Roberts also was an adjunct professor at Columbia Law School.