Steiger, S. S., Valcu, M., Spoelstra, K., Helm, B., Wikelski, M., & Kempenaers, B. (2013). When the sun never sets: Diverse activity rhythms under continuous daylight in free-living arctic-breeding birds. The Royal Society.
Chicago Style CitationSteiger, Silke S., Mihai Valcu, Kamiel Spoelstra, Barbara Helm, Martin Wikelski, and Bart Kempenaers. When the Sun Never Sets: Diverse Activity Rhythms Under Continuous Daylight in Free-living Arctic-breeding Birds. The Royal Society, 2013.
MLA CitationSteiger, Silke S., et al. When the Sun Never Sets: Diverse Activity Rhythms Under Continuous Daylight in Free-living Arctic-breeding Birds. The Royal Society, 2013.
Warning: These citations may not always be 100% accurate.