https://scholars.unh.edu/pdch_5_28/ 2022-05-04 https://scholars.unh.edu/pdch_5_28/1/ 2015-04-30 https://scholars.unh.edu/pdch_5_28/2/ 2015-04-30 https://scholars.unh.edu/pdch_5_28/3/ 2022-05-04 https://scholars.unh.edu/pdch_5_28/4/ 2020-09-09