Selter, C., Prediger, S., Nührenbörger, M., & Hußmann, S. (2012). Taking away and determining the difference—a longitudinal perspective on two models of subtraction and the inverse relation to addition. Educational studies in mathematics, 79(3), 389-408. https://doi.org/10.1007/s10649-011-9305-6
Citace podle Chicago (17th ed.)Selter, Christoph, Susanne Prediger, Marcus Nührenbörger, a Stephan Hußmann. "Taking Away and Determining the Difference—a Longitudinal Perspective on Two Models of Subtraction and the Inverse Relation to Addition." Educational Studies in Mathematics 79, no. 3 (2012): 389-408. https://doi.org/10.1007/s10649-011-9305-6.
Citace podle MLA (9th ed.)Selter, Christoph, et al. "Taking Away and Determining the Difference—a Longitudinal Perspective on Two Models of Subtraction and the Inverse Relation to Addition." Educational Studies in Mathematics, vol. 79, no. 3, 2012, pp. 389-408, https://doi.org/10.1007/s10649-011-9305-6.