00289nam a2200109Ia 4500008004100000040001100041100002500052245003900077260004100116300001300157300000900170251112s9999||||xx |||||||||||||| ||und||  aCNCLSA  aFritiof S. Sjostrand 0aJournal of Ultrastructure Research  cJuly, 1967bAcademic PressaNew York  aP. 1-615  bV.41