@article{Mebel2002, <br/>
            author = { Mebel, A. M. and Kaiser, R. I. } ,<br/>title = "{The Formation of Interstellar C_2N Isomers in Circumstellar Envelopes of Carbon Stars: An Ab Initio Study}"  ,<br/> journal = {Astrophysical Journal} ,<br/> year = 2002 ,<br/> volume = 564 ,<br/> pages = {787-791}  ,<br/> doi = {10.1086/324334}  <br/> }