Publications for the previous ICOPIA:

ICOPIA 2014
Advances in Physics Research,
https://www.atlantis-press.com/proceedings/icopia-14

ICOPIA 2016
Journal of Physics: Conference Series, Volume 776
https://iopscience.iop.org/article/10.1088/1742-6596/776/1/011001

ICOPIA 2018
Journal of Physics: Conference Series, Volume 1153
https://iopscience.iop.org/article/10.1088/1742-6596/1153/1/011001