• Digital public service improvement in cross-border use casesRaamat, Helen; Liiv, Innar; Lips, Silvia; Ahmed, Rozha Kamal; Sharma, Rahul; Draheim, Dirk37th Bled eConference – Resilience Through Digital Innovation: Enabling the Twin Transition: June 9 – 12, 2024, Bled, Slovenia, Conference Proceedings2024 / p. 269–282 : ill https://doi.org/10.18690/um.fov.4.2024.15
• The once-only principle : a matter of trustKrimmer, Robert Johannes; Prentza, Andriana; Mamrot, Szymon; Schmidt, CarstenThe once-only principle : The TOOP project2021 / p. 1-8 https://doi.org/10.1007/978-3-030-79851-2_1 https://www.scopus.com/sourceid/25674 https://www.scopus.com/record/display.uri?eid=2-s2.0-85109822005&origin=inward&txGid=43c0b78e07c74b81a9a2f4f80a0a03fa https://jcr.clarivate.com/jcr-jp/journal-profile?journal=LECT%20NOTES%20ARTIF%20INT&year=2005 https://www.webofscience.com/wos/woscc/full-record/WOS:000894547800003
• “When need becomes necessity” - The single digital gateway regulation and the once-only principle from a European point of view
  Schmidt, Carsten; Krimmer, Robert Johannes; Lampoltshammer, Thomas J.Open Identity Summit 2021: Fachtagung vom 01.-02. Juni 2021 Copenhagen2021 / p. 223-228 https://dl.gi.de/server/api/core/bitstreams/ec03538d-b376-4537-bc0f-aab2936c74f8/content https://www.scopus.com/sourceid/21100229106 https://www.scopus.com/record/display.uri?eid=2-s2.0-85120520994&origin=resultslist&sort=plf-f&src=s&sid=b0dcfb58993e0eeceaf7e845ac02712b&sot=b&sdt=b&s=TITLE-ABS-KEY%28%22%22When+need+becomes+necessity%22+-+The+single+digital+gateway+regulation+and+the+once-only+principle+from+a+European+point+of+view%22%29&sl=144&sessionSearchId=b0dcfb58993e0eeceaf7e845ac02712b&relpos=0