1) One is born 1959 and he has written the books "Stenbeck" and "Medan Svensson åt plankstek" and maybe some other books.
2) One Per Andersson is born in 1961 and he has written at least one of the books listed here: "Nordiska korsflaggor".
3) Per Andersson who is born in 1964 is the author of "Att värdera kunskap". I didn't check all the Per Anderssons...
4) Andersson, Per 1952- wrote MerIT : matematik. B, [Bok].
5) Pers Andersson - Goda nyheter : [bra journalistik från svenska medier ].