00352cam a22001097a 4500008004000000082001400040100002100054245010500075260003500180300001000215650001700225180718b1976   xxu||||| |||| 00| 0 eng d  aT108 P755  aPoirier, Dale J.  aThe econometrics of structural change, with special emphasis on spline functionscby Dale J. Poirier  aAmsterdambNorth Hollandc1976  a206p.  aEconometrics