Downard KM (2007). "Historical account: Francis William Aston: the man behind the mass spectrograph". European Journal of Mass Spectrometry. 13 (3): 177–90. doi:10.1255/ejms.878. PMID17881785. S2CID25747367.
Downard KM (2007). "Historical account: Francis William Aston: the man behind the mass spectrograph". European Journal of Mass Spectrometry. 13 (3): 177–90. doi:10.1255/ejms.878. PMID17881785. S2CID25747367.
Downard KM (2007). "Historical account: Francis William Aston: the man behind the mass spectrograph". European Journal of Mass Spectrometry. 13 (3): 177–90. doi:10.1255/ejms.878. PMID17881785. S2CID25747367.