Michelsen, Olaf, and Lars Henrik Jensen. 1991. “Well Records on the Phanerozoic Stratigraphy in the Fennoscandian Border Zone, Denmark. Hans-1, Sæby-1, and Terne 1 Wells”. Danmarks Geologiske Undersøgelse Serie A 29 (October). Copenhagen, Denmark:1-37. https://doi.org/10.34194/seriea.v29.7049.