Molesworth, Brett; Burgess, Marion; Kwon, Daniel (2013). "The use of noise-cancelling headphones to improve concurrent task performance in a noisy environment". Applied Acoustics. Elsevier. 74: 110-15. doi:10.1016/j.apacoust.2012.06.015.. Recognition and recall of audio information improved when 65 dB(A) background noise was blocked by noise-cancelling headphones, and performance was "no different" when listening with the headphones while at the same time working a mathematical puzzle, than while trying to listen to the same audio with neither puzzle nor headphones.
Molesworth, Brett; Burgess, Marion; Kwon, Daniel (2013). "The use of noise-cancelling headphones to improve concurrent task performance in a noisy environment". Applied Acoustics. Elsevier. 74: 110-15. doi:10.1016/j.apacoust.2012.06.015.. Recognition and recall of audio information improved when 65 dB(A) background noise was blocked by noise-cancelling headphones, and performance was "no different" when listening with the headphones while at the same time working a mathematical puzzle, than while trying to listen to the same audio with neither puzzle nor headphones.
Jonaely, Rosarito (5 Mart 2018). "How to get quality sleep at night?". Scalar. University of Southern California. 11 Kasım 2020 tarihinde kaynağından arşivlendi. Erişim tarihi: 1 Ocak 2021.
Yu, Winnie & Smith, Michael W., MD (7 Kasım 2013). "Will a Gadget Help You Sleep?". WebMD. 26 Kasım 2014 tarihinde kaynağından arşivlendi.KB1 bakım: Birden fazla ad: yazar listesi (link)
Jonaely, Rosarito (5 Mart 2018). "How to get quality sleep at night?". Scalar. University of Southern California. 11 Kasım 2020 tarihinde kaynağından arşivlendi. Erişim tarihi: 1 Ocak 2021.
Yu, Winnie & Smith, Michael W., MD (7 Kasım 2013). "Will a Gadget Help You Sleep?". WebMD. 26 Kasım 2014 tarihinde kaynağından arşivlendi.KB1 bakım: Birden fazla ad: yazar listesi (link)