@incollection{Economou11,
author = {Thanasis E. Economou},
title = {History of Applications of Radioactive Sources in Analytical Instruments for Planetary Exploration},
booktitle = {Radioisotopes},
publisher = {IntechOpen},
address = {Rijeka},
year = {2011},
editor = {Nirmal Singh},
chapter = {9},
doi = {10.5772/23087},
url = {https://doi.org/10.5772/23087}
}