@incollection{Eerme15,
author = {Kalju Eerme and Margit Aun and Uno Veismann},
title = {Instrumentation and Measurement of Ground-Level Ultraviolet Irradiance and Spectral Composition in Estonia},
booktitle = {Solar Radiation Applications},
publisher = {IntechOpen},
address = {Rijeka},
year = {2015},
editor = {Segun Raphael Bello},
chapter = {6},
doi = {10.5772/59615},
url = {https://doi.org/10.5772/59615}
}