There are 7 entries in The Numismatic Chronicle about Celtic coins.
Bursche, A., Celtic, Roman and Merovingian coins in north-west Germany: remarks on Frank Bergers Untersuchungen zu römerzeitlichen Münzfunden in Nordwestdeutchland, Volume: 154 (1994) 225 ff
Haselgrove, C., The development of British Iron-age coinage, Volume: 153 (1994) 31 ff
Mays, M., Inscriptions on British Celtic coins, Volume: 152 (1992) 57 ff
Naisir, M.J., see Thompson and Naisir, 7th series Volume: 12 (1972)
Nash, D., The chronology of Celtic coinage in Gaul: the Arvernian “Hegemony” reconsidered, 7th series Volume: 15 (1975) 204 ff
Richard, J.C.M., Les monnaies “A la croix” du British Museum, 7th series Volume: 15 (1975) 46 ff
Thompson, F.C. and M.J. Nasir, The manufacture of Celtic coins from the La Marquanderie hoard, 7th series Volume: 12 (1971) 66 ff