Margaret Peg H. Gjertsen Beichner, R., Bernold, L., Burniston, E., Dail, P., Felder, R., Gastineau, J., … Risley, J. (1999). Case study of the physics component of an integrated curriculum. AMERICAN JOURNAL OF PHYSICS, 67(7), S16–S24. https://doi.org/10.1119/1.19075 Beichner, R., Gastineau, W. L. K., E., E. J., V., G. P., H., H. M., Ritchie, M., … Risley, J. S. (1995). Hardware and software preferences. Physics Teacher, 33(5), 270–274. https://doi.org/10.1119/1.2344217