Mojtaba Heydarizad and  Hamid Ghalibaf Mohammadabadi,  Studying the Moisture Sources and the Stable Isotope Characteristic of Moisture in Northern Khorasan Province, North-Eastern Iran.   journal   = {International Journal of Marine and Environmental Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2019, vol. 154(10). 597 - 601
    [viewed 08 December 2019]. Available from: https://publications.waset.org/pdf/10010795.