@Article{nhess-9-1403-2009,
AUTHOR = {Sasmal, S. and Chakrabarti, S. K.},
TITLE = {Ionosperic anomaly due to seismic activities – Part 1:  Calibration of the VLF signal of VTX 18.2 KHz station from Kolkata and deviation during seismic events},
JOURNAL = {Natural Hazards and Earth System Sciences},
VOLUME = {9},
YEAR = {2009},
NUMBER = {4},
PAGES = {1403--1408},
URL = {https://nhess.copernicus.org/articles/9/1403/2009/},
DOI = {10.5194/nhess-9-1403-2009}
}