Knappe, S., Pfarr, A., Petzoldt, J., Härtling, S., & Martini, J. (2020). Parental Cognitions About Sleep Problems in Infants: A Systematic Review. Front Psychiatry.

Knappe, Susanne, Anna-Lisa Pfarr, Johanna Petzoldt, Samia Härtling, و Julia Martini. "Parental Cognitions About Sleep Problems in Infants: A Systematic Review." Front Psychiatry 2020.

Knappe, Susanne, et al. "Parental Cognitions About Sleep Problems in Infants: A Systematic Review." Front Psychiatry 2020.