Research mathematicians’ practices in selecting mathematical problems

Basics of Qualitative Research: Grounded Theory Procedures and Techniques.

Carolyn Ellis, Anselm Strauss, Juliet Corbin · Contemporary Sociology A Journal of Reviews · 1992 · 29.4K citations

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InterViews: An introduction to qualitative research interviewing.

Steinar Kvale · 1996 · 13K citations

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How to Solve It. A New Aspect of Mathematical Method.

E. T. Bell, Georg Pólya · American Mathematical Monthly · 1945 · 1.8K citations

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Ethnomathematics and its Place in the History and Pedagogy of Mathematics.

Ubiratan D’Ambrósio · for the learning of mathematics · 1985 · 944 citations

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On proof and progress in mathematics

William P. Thurston · Bulletin of the American Mathematical Society · 1994 · 629 citations · Full text

Natural Sciences, Mathematics, Dynamical Systems +9