@article{Roberts2003,
author = {Roberts, E. and Ruggles, S. and Dillon, L.Y. and Garðarsdóttir, Ó. and Oldervoll, J. and Thorvaldsen, G. and Woollard, M.},
title= {The North Atlantic Population Project: An overview},
year = {2003},
doi = {10.1080/01615440309601217},
journal = {Historical Methods },
volume = {36},
number = {2},
pages = {80--88},
}