The Development of Children's Historical Thinking - Shawyer, Gwenifer and Booth, Martin and Brown, Richard (Cambridge Journal of Education, 1988)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wMzA1NzY0ODgwMTgwMjA3