1] mr Darija Knežević Ratković Ion-exchange retention models in the analysis of retention mechanisms of amitriptyline hydrochloride and its impurities in hydrophilic interaction liquid chromatography" - Contemporary Materials 2024 - Savremeni Materijali, 26.07.2024.
(https://ekonferencije.com/en/paper/ion-exchange-retention-models-/6621)

2] mr Darija Knežević Ratković RETENTION MECHANISMS OF AMITRIPTYLINE AND ITS IMPURITIES IN HYDROPHILIC INTERACTION LIQUID CHROMATOGRAPHY" - Contemporary Materials 2023 - Savremeni materijali, 31.07.2023.
(https://ekonferencije.com/en/paper/retention-mechanisms-of-amitri/6510)