@article{albayrak_halıcıoğlu_özlüdemir_başoğlu_deniz_tyler_aref_2019,  title={THE USE OF THE AUTOMATED DIGITAL ZENITH CAMERA SYSTEM IN ISTANBUL FOR THE DETERMINATION OF ASTROGEODETIC VERTICAL DEFLECTION},  volume={25},  ISSN={1982-2170},  url={https://doi.org/10.1590/s1982-21702019000400025},  DOI={10.1590/s1982-21702019000400025},  number={4},  journal={Boletim de Ciências Geodésicas},  publisher={Universidade Federal do Paraná},  author={Albayrak, Müge and Halıcıoğlu, Kerem and Özlüdemir, Mustafa Tevfik and Başoğlu, Burak and Deniz, Rasim and Tyler, Allison RB and Aref, Mohammed Mohseni},  year={2019},  pages={e2019025} }