Ramm, M., Boentert, M., & Jafarpour, A. (2019). Disease-specific attention impairment in disorders of chronic excessive daytime sleepiness. Sleep Medicine. https://doi.org/10.1016/j.sleep.2018.09.021
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ramm, Markus, Matthias Boentert, و Arsalan Jafarpour. "Disease-specific Attention Impairment in Disorders of Chronic Excessive Daytime Sleepiness." Sleep Medicine 2019. https://doi.org/10.1016/j.sleep.2018.09.021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ramm, Markus, et al. "Disease-specific Attention Impairment in Disorders of Chronic Excessive Daytime Sleepiness." Sleep Medicine, 2019, https://doi.org/10.1016/j.sleep.2018.09.021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.