@misc{indiciaebf5b73821882, title = {The Updated Umkehr Ozone Retrieval Algorithm and its Validation against Satellite Data}, author = {Petropavlovskikh, I. and Bhartia, P. K. and Labow, G. and Wellemeyer, C.}, year = {2003}, url = {https://ntrs.nasa.gov/citations/20030112967}, note = {Source identifier: 20030112967} }