Scientific journal publication Temporal trends of perfluoroalkane sulfonic acids and their sulfonamide-based precursors in herring from the Swedish west coast 1991-2011 including isomer-specific considerations. Ullah, S.; Huber, S.; Bignert, A.; Berger, U. Publication details Journal: Environment International, 65, 63–72, 2014 DOI: 10.1016/j.envint.2014.01