Verbs of motion in Polish are a source of many puzzles, but probably the most celebrated of these is the existence of a class of paired imperfective verbs that are very similar in meaning. […]
In Formal Slavistik, Leipziger Schriften zur Kultur-, Literatur-, Sprach- und Übersetzungswissenschaft 7, Uwe Junghanns and Gerhild Zybatow (eds.), pp. 467–488. Vervuert Verlag, Frankfurt am Main, 1997.
Paper, scan (grayscale, 300 dpi)
http://pinon.sdf-eu.org/covers/vmppp.html