. "Though mainstream publishers continued to be willing and able to underwrite the early poetry of such artists as Richard Wilbur, Robert Lowell, Anne Sexton, Donald Hall, and Elizabeth Bishop, they tended to draw the line at what they regarded as more problematic poets: Allen Ginsberg, Charles Olson, Gary Snyder, Denise Levertov. The university press had made a significant debut in poetry publishing" . . . . .