Olsen, A.; Tullis, B. (2013). "Laboratory Study of Fish Passage and Discharge Capacity in Slip-Lined, Baffled Culverts". Journal of Hydraulic Engineering. 139 (4): 424–432. doi:10.1061/(asce)hy.1943-7900.0000697. ISSN0733-9429.
Olsen, A.; Tullis, B. (2013). "Laboratory Study of Fish Passage and Discharge Capacity in Slip-Lined, Baffled Culverts". Journal of Hydraulic Engineering. 139 (4): 424–432. doi:10.1061/(asce)hy.1943-7900.0000697. ISSN0733-9429.