12

Smithson L., Baird T., Tamana S.K., Lau A., Mariasine J., Chikuma J., Lefebvre D.L., Subbarao P., Becker A.B., Turvey S.E., Sears M.R.The CHILD (Canadian Healthy Infant Longitudinal Development) Study Investigators, Beal D.S., Pei J., Mandhane P.J.Shorter sleep duration is associated with reduced cognitive development at two years of age.Sleep medicine.Official Journal of the World Sleep Society and International Pediatric Sleep Association.August 2018, Volume 48, 131–139.

13

https://www.sci-hub.ru/10.1542/peds.2010-0976

14

https://www.sci-hub.ru/10.1542/peds.2010-0976

15

Benedict R.Child rearing practices in certain European countries.Am J Orthopsychiatry.1949;19:342–250.