Financially supported by Chinese Academy of Sciences (CAS) President's International Fellowship Initiative (PIFI) for 2018, and invited by Prof. Junhu Wang, Dr. Zoltán Klencsár visited the Mössbauer Effect Data Center (MEDC) from 15 October to 15 December, 2018, for carrying for a joint project “Research and Development of Mössbauer Spectroscopy Database Systems”.