@inbook{costello_sridharan_sridhara_tanner_2003, 
  title={Low Density Parity Check Convolutional Codes Derived from Quasi-Cyclic Block Codes}, 
  DOI={10.1007/978-1-4757-3789-9_4}, 
  publisher={Springer US}, 
  author={Costello and Sridharan and Sridhara and Tanner}, 
  year={2003}
  }