February 13, 2000

Tom Landry, the head coach who led the Dallas Cowboys to five Super Bowls as the franchise became known as America's Team, died yesterday in Dallas. He was 75. He had been undergoing treatment for acute myelogenous leukemia since May.

Universities and professors dispute who owns the right to a professor's lectures and research when they are made available online; universities are rewriting policies on how professors may use course materials on the Internet, and the legal questions involved have yet to be settled; photo (M)

David Barboza article presents overview of after-hours stock trading; many brokers say opening markets to small online investors after 4pm is next move in revolution sweeping Wall Street, toppling old-boy network and providing new opportunities for average investors, but warn investors about jumping in since market is thin and very volatile; photos; graphs; charts (L)

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Clinton Administration proposes 9 percent increase in budget for Internal Revenue Service in order to allow it to raise number of auditors for the first time in 6 years; warns that continuing cuts at IRS, whose auditing staff is down one-fourth since 1995, threatens nation's tax system; IRS commissioner, Charles O Rossotti, begins emphasizing that catching cheaters and making them pay up is as important as helping honest taxpayers; IRS will target people with incomes over $100,000, especially business owners, professionals and investors in partnerships; will also focus on illegitimate business tax shelters; graph (M)