@phdthesis{ElTakach2005,
  author      = {Suzanne El Takach},
  title       = {Developing students' understanding of the nature of science in the context of Alexander von Humboldt's legacy for Grade 5 and Grade 6 classrooms in Baden-W{\"u}rttemberg schools},
  type        = {doctoralthesis},
  school      = {P{\"a}dagogische Hochschule Heidelberg},
  year        = {2005},
}