%0 Journal Article %T Comparative ultrastructural study of the effects of serum-free medium and dibutyryl-cyclic AMP on newborn rat astroblasts %A Moonen, G. %A Heinen, E. %A Goessens, G. %J Cell and Tissue Research %V 167 %N 2 %P 221-227 %@ 0302-766X %D 1976-03-01 %I Springer-Verlag %~ DeepDyve