P. Christiansen
发表
N. Fearnley,
P. Christiansen,
Ø. Engebretsen,
2017
.
P. Christiansen,
2018,
Transportation Research Part A: Policy and Practice.
P. Christiansen,
Petter N Christiansen,
2016
.
Kjersti Visnes Øksenholt,
Aud Tennøy,
P. Christiansen,
2016
.
T. Julsrud,
J. Denstadli,
P. Christiansen,
2017
.
R. Elvik,
J. Elíasson,
H. Westskog,
2014
.
P. Christiansen,
2020
.
Julie Runde Krogstad,
P. Christiansen,
K. Isaksson,
2019,
Transport Policy.
Petter Christiansen,
Nils Fearnley,
Kåre Skollerud,
2017
.
Arvid Strand,
Petter Christiansen,
Øystein Engebretsen,
2017
.
T Järvi,
Corinne Blanquart,
Giannis Adamos,
2012
.
H. Westskog,
H. Amundsen,
P. Christiansen,
2020
.