Sirovica, I. (2021). Pregled istraživanja noćnih leptira (Lepidoptera:Heterocera) Parka prirode Kopački rit (Master's thesis). Osijek: Josip Juraj Strossmayer University of Osijek, Department of biology. Retrieved from https://urn.nsk.hr/urn:nbn:hr:181:928285
Sirovica, Ivan. "Pregled istraživanja noćnih leptira (Lepidoptera:Heterocera) Parka prirode Kopački rit." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, 2021. https://urn.nsk.hr/urn:nbn:hr:181:928285
Sirovica, Ivan. "Pregled istraživanja noćnih leptira (Lepidoptera:Heterocera) Parka prirode Kopački rit." Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, 2021. https://urn.nsk.hr/urn:nbn:hr:181:928285
Sirovica, I. (2021). 'Pregled istraživanja noćnih leptira (Lepidoptera:Heterocera) Parka prirode Kopački rit', Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, accessed 27 December 2024, https://urn.nsk.hr/urn:nbn:hr:181:928285
Sirovica I. Pregled istraživanja noćnih leptira (Lepidoptera:Heterocera) Parka prirode Kopački rit [Master's thesis]. Osijek: Josip Juraj Strossmayer University of Osijek, Department of biology; 2021 [cited 2024 December 27] Available at: https://urn.nsk.hr/urn:nbn:hr:181:928285
I. Sirovica, "Pregled istraživanja noćnih leptira (Lepidoptera:Heterocera) Parka prirode Kopački rit", Master's thesis, Josip Juraj Strossmayer University of Osijek, Department of biology, Osijek, 2021. Available at: https://urn.nsk.hr/urn:nbn:hr:181:928285