@article{ZhuSchulzBrumaetal.1996,
  author    = {Zhu, Shigen and Schulz, Burkhard and Bruma, Maria and Brehmer, Ludwig},
  title     = {Comparative study of the thermal properties of related aromatic polyhydrazides and poly(1,3,4-oxadiazole)s},
  issn      = {1042-7147},
  doi       = {10.1002/(SICI)1099-1581(199612)7:12<879::AID-PAT600>3.0.CO;2-X},
  year      = {1996},
  language  = {en}
}
@article{SavaSchulzZhuetal.1995,
  author    = {Sava, Ion and Schulz, Burkhard and Zhu, Shigen and Bruma, Maria},
  title     = {Synthesis and characterization of new silicon-containing poly(arylene-1,3,4-oxadiazole)s},
  issn      = {0954-0083},
  doi       = {10.1088/0954-0083/7/4/011},
  year      = {1995},
  language  = {en}
}