@BOOK{NAP4557, author = "National Research Council", title = "Low-Frequency Sound and Marine Mammals: Current Knowledge and Research Needs", isbn = "978-0-309-05025-8", doi = "10.17226/4557", abstract = "This volume reviews the current state of knowledge regarding the effects of low-frequency sound on marine mammals and makes recommendations for research. In addition, the book describes current federal regulations prescribed under the Marine Mammal Protection Act that govern the taking of marine mammals by scientific research activities, and it recommends changes to expedite the regulatory process dealing with scientific research activities.", url = "https://nap.nationalacademies.org/catalog/4557/low-frequency-sound-and-marine-mammals-current-knowledge-and-research", year = 1994, publisher = "The National Academies Press", address = "Washington, DC" }