00398nam a2200169Ia 450000500170000000800410001708200150005810000130007324500260008626000310011230000100014365000230015365000100017665000130018665000100019965000190020920260522165648.0240817s9999    xx            000 0 und d  a666 P68, s  aPopper,P 0aSpecial ceramics 1962  c1963a New Yorkb Academic  a148p.  aPlastic Technology  aglass  aCeramics  aglads  aCeramic Drying