id: 06154811 dt: j an: 2013b.00059 au: Karp, Alexander ti: Interview with Heinrich Bauersfeld. so: Int. J. Hist. Math. Educ. 7, No. 2, 65-90 (2012). py: 2012 pu: COMAP, Bedford, MA la: EN cc: A30 D10 ut: educational research ci: li: