Thomas A, Danon L, Christensen H, Northstone K, Smith D, Nixon E, Trickey A, Hemani G, Sauchelli S, Finn A, Timpson N, Brooks-Pollock E. Limits of lockdown: characterising essential contacts during physical distancing. Wellcome Open Res. 2021 May;6:116. doi: 10.12688/wellcomeopenres.16785.1
Maitra B, Dandapat S, Chintakayala P. Differences between the perceptions of captive and choice riders toward bus service attributes and the need for segmentation of bus services in urban India. J Urban Plan Dev. 2015 Jun;141(2).
Brown JP, Amaechi BT, Bader JD, Shugars D, Vollmer WM, Chen C, Gilbert GH, Esterberg EJ, X-ACT Collaborative Research Group. The dynamic behavior of the early dental caries lesion in caries-active adults and implications. Community Dent Oral Epidemiol. 2015 Jun;43(3):208-16. doi: 10.1111/cdoe.12143
Chintakayala PK, Maitra B. Modeling generalized cost of travel and its application for improvement of taxies in Kolkata. J Urban Plan Dev. 2010 Mar;136(1).