Olsen, L. H. Studies on the development of myxomatous mitral valve disease in dogs: Aetiology, epidemiology, early diagnosis, pathogenesis and pathophysiology. Dept. of Basic Animal and Veterinary Sciences, Royal Veterinary and Agricultural University, 2005.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Olsen, Lisbeth Høier. Studies on the Development of Myxomatous Mitral Valve Disease in Dogs: Aetiology, Epidemiology, Early Diagnosis, Pathogenesis and Pathophysiology. Copenhagen: Dept. of Basic Animal and Veterinary Sciences, Royal Veterinary and Agricultural University, 2005.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Olsen, Lisbeth Høier. Studies on the Development of Myxomatous Mitral Valve Disease in Dogs: Aetiology, Epidemiology, Early Diagnosis, Pathogenesis and Pathophysiology. Dept. of Basic Animal and Veterinary Sciences, Royal Veterinary and Agricultural University, 2005.