Diode laser based detection and determination of pressure-induced broadening coefficients in the ν1+ν3 combination band of ammoniaJ. S. Gibb, G. Hancock, R. Peverall, G.A.D Ritchie and L. J. RussellEur. Phys. J. D, 28 1 (2004) 59-66DOI: https://doi.org/10.1140/epjd/e2003-00289-y