BibTex format
@article{Suel:2015:10.3141/2496-06,
author = {Suel, E and Le, Vine S and Polak, J},
doi = {10.3141/2496-06},
journal = {TRANSPORTATION RESEARCH RECORD},
pages = {45--54},
title = {Empirical Application of Expenditure Diary Instrument to Quantify Relationships Between In-Store and Online Grocery Shopping Case Study of Greater London},
url = {http://dx.doi.org/10.3141/2496-06},
year = {2015}
}