@entry{caf-mes-tou-16-aa,
  author = {S Cafieri and F Messine and A Touhami},
  title = {On Solving Aircraft Conflict Avoidance Using Deterministic Global Optimization (sBB) Codes},
  journal = {... GOW'16 4-8 ...,},
  year = 2016,
  url = {{\url{https://repositorium.sdum.uminho.pt/bitstream/1822/42944/1/Proceedings%20GOW16.pdf#page=160}}},
  quotes = {... We propose a new quadratic convex relaxation technique based on affine arithmetic. Moreover, a branching strategy is also proposed for the considered problem. Preliminary numerical ...}
}