Phase slippage at the interface : normal metal/sliding charge-density wavePar admin / 10 janvier 2000 Monceau P. Rideau, D., Requardt, H., Currat, R., Nad, F., Lorenzo, J.E., Brazovskii, S., Kirova, N., Smilgies, D., Grubel, G. Physica B 280 (2000) 317-322