Two-Dimensional Partial-Covariance Mass Spectrometry of Large Molecules Based on Fragment Correlations oleh Taran Driver, Bridgette Cooper, Ruth Ayers, Rüdiger Pipkorn, Serguei Patchkovskii, Vitali Averbukh, David R. Klug, Jon P. Marangos, Leszek J. Frasinski, Marina Edelson-Averbukh