Wakelyn, N. T. <br/>
       Annealing of aromatic polyimide precursors [NASA TN D-7898] 
 / N. T. Wakelyn 
 .- Washington, D. C.: National Aeronautics and Space Administration ,  1975 
 .- 63p. 
.- ( National Aeronautics and Space Administration  (NASA)   
<br/><u>Subject Headings:</u> <br/>Polymide;