Here are some useful papers that can be downloaded from ADS-Harvard and the IMO.
Meteor Spectroscopy with Inexpensive Holographic Gratings
Canadian Scientists Report-XII Meteor Spectroscopy with Transmission Diffraction Gratings
Current trends in meteor spectroscopy
One hundred and fifteen years of meteor spectroscopy
High resolution spectra and monochromatic images of a flaring 1991 Perseid meteor (Using Reflection Gratings)
IMO Photographic Handbook part 3