Robuta

https://www.bas.ac.uk/data/our-data/publication/on-the-probability-distributions-of-superdarn-doppler-spectral-width-measurements/
probability distributionsspectral widthsuperdarndopplermeasurements
https://www.bas.ac.uk/data/our-data/publication/an-investigation-of-latitudinal-transitions-in-the-superdarn-doppler-spectral/
investigationlatitudinaltransitionssuperdarndoppler
https://www.bas.ac.uk/data/our-data/publication/the-accuracy-of-using-the-spectral-width-boundary-measured-in/
spectral widthaccuracyusingboundarymeasured