Alexander, B., Hubers, C., Schwanen, T., Dijst, M., & Ettema, D. (2011). Anything, anywhere, anytime? Developing measurement instruments to assess the spatial and temporal fragmentation of activities. Pion.
Lua i Stíl Chicago (17ú heag.)Alexander, B., C. Hubers, T. Schwanen, M. Dijst, agus D. Ettema. Anything, Anywhere, Anytime? Developing Measurement Instruments to Assess the Spatial and Temporal Fragmentation of Activities. Pion, 2011.
Lua MLA (9ú heag.)Alexander, B., et al. Anything, Anywhere, Anytime? Developing Measurement Instruments to Assess the Spatial and Temporal Fragmentation of Activities. Pion, 2011.
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