https://scholarsphere.psu.edu/resources/00bf31b6-4cb1-429d-85e1-3c553875446d
https://scholarsphere.psu.edu/resources/267de30a-9ae8-4f36-96f0-76df4c0a5cda
https://scholarsphere.psu.edu/resources/9c69c33e-d51f-44df-ab56-6fb14195e719
https://scholarsphere.psu.edu/resources/53eff88c-1054-42bd-89eb-7f80d51282f7
https://scholarsphere.psu.edu/resources/a08c4dc3-c951-453f-b698-8eb235749c1a
https://scholarsphere.psu.edu/resources/ae57d84d-a7a8-4da8-bee2-df1fcde0c9b2
https://scholarsphere.psu.edu/resources/643ab961-3c86-48b8-9125-5b53df3f868b
https://scholarsphere.psu.edu/resources/97f69d67-0fb8-4690-8077-4d50c03ee0b5
https://scholarsphere.psu.edu/resources/d004239e-cc18-4135-8b61-f631fd9972b7
https://scholarsphere.psu.edu/resources/fe4fa085-59ee-432c-9de0-401d5ade19d4
https://scholarsphere.psu.edu/resources/fc67d838-ec1d-4f5c-a945-1692b79d1991
https://scholarsphere.psu.edu/resources/72e8229c-8071-497c-9c37-8bee78fcbd81
https://scholarsphere.psu.edu/resources/219dc1ad-f51d-4b49-b9dc-d6813de52e67