Månsson Sven-Axel, "Den Köpta Sexualiteten", in Bo Lewin, ed., Sex i Sverige: Om Sexuallivet 1996, Stockholm: Statens Folkhälsoinstitut, 1998 (Purchased Sex, in Sex in Sweden: About Sexual Life 1996), cited in: Norwegian Ministry of Justice and Police Affairs, Purchasing Sexual Services in Sweden and the Netherlands, p. Life magazine reported that 3 quarters of American large-university students took no physics at all.