@article{compref655,
   author = {De Reyck,B and Herroelen,W},
   year = {1996},
   title = {On the use of the complexity index as a measure of complexity in activity networks},
   journal = {European Journal of Operational Research},
   volume = {91},
   pages = {347-366}
}

@article{compref322,
   author = {Tian,J and Zelkowitz,MV},
   year = {1995},
   title = {Complexity Measure Evaluation and Selection},
   journal = {IEEE Transactions on Software Engineering},
   volume = {21},
   pages = {641-650}
}

@article{compref271,
   author = {Raccoon,LBS},
   year = {1995},
   title = {The Complexity Gap},
   journal = {Software Engineering Notes},
   volume = {20},
   pages = {37-44}
}

@article{compref594,
   author = {Ligggesmeyer,P},
   year = {1995},
   title = {A set of complexity metrics for guiding the software test process},
   journal = {Software Quality Journal},
   volume = {4},
   pages = {257-273}
}

@article{compref168,
   author = {Hops,JM and Sherif,JS},
   year = {1995},
   title = {Development and application of composite complexity models and a relative complexity metric in a software maintenance environment},
   journal = {Journal of Systems and Software},
   volume = {31},
   pages = {157-169}
}

@article{compref247,
   author = {O'Neal,MB and Edwards,WR},
   year = {1994},
   title = {Complexity Measures for Rule-Based Programs},
   journal = {IEEE Transactions on Knowledge and Data Engineering},
   volume = {6},
   pages = {669-680}
}

@article{compref231,
   author = {Mata-Toledo,RA and Gustafson,DA},
   year = {1992},
   title = {A Factor Analysis of Software Complexity Measures},
   journal = {Journal of Systems and Software},
   volume = {17},
   pages = {267-273}
}

@article{compref86,
   author = {Cherniavsky,JC and Smith,CH},
   year = {1991},
   title = {On Weyuker Axioms for Software Complexity Measures},
   journal = {IEEE Transactions on Software Engineering},
   volume = {17},
   pages = {636-638}
}

@book{compref367,
   author = {Zuse,H},
   year = {1991},
   title = {Software Complexity},
   publisher = {Walter de Gruyter},
   address = {Berlin}
}

@article{compref170,
   author = {Howatt,JW and Baker,AL},
   year = {1989},
   title = {Rigorous Definition and Analysis of Program Complexity Meaures - An example using nesting},
   journal = {Journal of Systems and Software},
   volume = {10},
   pages = {139-150}
}

@article{compref105,
   author = {Davis,JS and LeBlanc,RJ},
   year = {1988},
   title = {A Study of the Applicability of Complexity Measures},
   journal = {IEEE Transactions on Software Engineering},
   volume = {14},
   pages = {1366-1372}
}

@article{compref343,
   author = {Weyuker,EJ},
   year = {1988},
   title = {The Evaluation of Software Complexity Measures},
   journal = {IEEE Transactions on Software Engineering},
   volume = {14},
   pages = {1357-1365}
}

@article{compref31,
   author = {Bail,WG and Zelkowitz,MV},
   year = {1988},
   title = {Program complexity using hierarchical abstract computers},
   journal = {Journal of Computer Languages},
   volume = {13},
   pages = {109-123}
}

@article{compref173,
   author = {Itai,A and Makowsky,JA},
   year = {1987},
   title = {Unification as a Complexity Measure for Logic Programming},
   journal = {Journal of Logic Programming},
   volume = {4},
   pages = {105-117}
}

@article{compref266,
   author = {Prather,RE},
   year = {1984},
   title = {An axiomatic theory of software complexity research},
   journal = {The Computer Journal},
   volume = {27},
   pages = {340-346}
}

@book{compref257,
   author = {Perlis,A and Sayward,F and Shaw,M (Eds.)},
   year = {1981},
   title = {Software Metrics},
   publisher = {MIT},
   address = {}
}

@article{compref620,
   author = {Henry,S and Kafura,K},
   year = {1981},
   title = {Software Structure Metrics based on Information Flow},
   journal = {IEEE Transactions on Software Engineering},
   volume = {7(5)},
   pages = {510-518}
}

@article{compref101,
   author = {Curtis,B and Sheppard,SB and Milliman,P and Borst,MA and Love,T},
   year = {1979},
   title = {Measuring the psycological complexity of software maintenance tasks with the Halstead and McCabe metrics},
   journal = {IEEE Transactions on Software Engineering},
   volume = {5},
   pages = {96-104}
}

@article{compref353,
   author = {Woodfield,SN},
   year = {1979},
   title = {An experiment on unit increase in problem complexity},
   journal = {IEEE Transactions on Software Engineering},
   volume = {5},
   pages = {76-79}
}

@book{compref152,
   author = {Halstead,MH},
   year = {1977},
   title = {Elements of Software Science},
   publisher = {Elsevier},
   address = {New York}
}

@article{compref232,
   author = {McCabe},
   year = {1976},
   title = {A Complexity Measure},
   journal = {IEEE Transactions on Software Engineering},
   volume = {2},
   pages = {308-320}
}