pdf	PDF sense OCR	revpsidep_a1992v1n2p48.pdf revpsidep_a1992v1n2p54.pdf revpsidep_a1992v1n2p64.pdf revpsidep_a1992v1n2p70.pdf revpsidep_a1992v1n2p90.pdf revpsidep_a1992v1n2p96.pdf