Helbich, M., Labib, S., Liedtke, I., Sent, D., Crombag, R., Ettema, D., Posthumus, H., Zee, S. V. D., Reiling, M., Ruinaard, S., Mispelaar, A. V., Brombacher, A., Hoyng, J., Spierings, B., Savenije, W. (2026). Healthy living environments create healthy physical activity-related habits (ELEVATE): A protocol for a smartphone-based mixed-method study. PLoS ONE. https://doi.org/10.1371/journal.pone.0348889