Does the ‘Grounded Theory’ Approach offer a Guiding Paradigm for Teacher Research? - Altrichter, Herbert and Posch, Peter (Cambridge Journal of Education, 1989)
https://katalog.adlr.link/Record/ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTA4MC8wMzA1NzY0ODkwMTkwMTA0