An online behavioural self-help intervention rapidly improves acute insomnia severity and subjective mood during the COVID-19 pandemic: a stratified randomised controlled trial - Elder, Greg J. (Verfasser); Santhi, Nayantara (Verfasser); Robson, Amelia R. (Verfasser); Alfonso-Miller, Pamela (Verfasser); Spiegelhalder, Kai (Verfasser); Ellis, Jason Gordon (Verfasser) (Universität, 2024)