@phdthesis{75830, author = {J.M. Nicholls}, title = {Some national and international routines for system evaluation and fault reporting}, year = {1987}, journal = {ECMWF/WMO Workshop on Radiosonde Data Quality and Monitoring, 14-16 December 1987}, pages = {239-248}, month = {1987}, publisher = {ECMWF}, address = {Shinfield Park, Reading}, language = {eng}, }