Here you go (the original paper):

http://rspb.royalsocietypublishing.org/content/275/1652/2715...

The newspaper misinterprets the study's conclusion. The study only says that pill affects odour preference and that "if odour plays a role in human mate choice, our results suggest that contraceptive pill use could disrupt disassortative mate preferences." Clearly, that's a big "if" and it doesn't seem to be discussed in the article.

PS: I live in Japan, and reading the newspaper my first thought was that at least there's some upside to the fact that Japanese women don't use the pill...