@data{iree.2018280.233725,
author = {Hong, Sanghyun},
publisher = {ZBW - Leibniz Informationszentrum Wirtschaft},
title = {r-codes},
year = {2019},
version = {1},
url = {https://journaldata.zbw.eu/dataset/r-codes},
keywords = {B41,C15,C18},
doi = "10.15456/iree.2018280.233725" 
}