1. Hard or soft: planning on medium size construction projects;Johansen,1996
2. Identifying the critical sequence in a resource-constrained project;Woodworth;International Journal of Project Management,1998
3. Project planning and control;Lester,1991
4. Planning and controlling construction projects: the best laid plans;Mawdesley,1997
5. Construction planning, programming and control;Cooke,1998