| Hamiltonian systems: Chaos and quantization AMO De Almeida Cambridge University Press, 1988 | 752 | 1988 |
| Periodic Orbits And The Correlation Function For The Density Of States OA Hannay J. Phys. A: Math. Gen. 17, 3429, 1984 | 414 | 1984 |
| The Weyl representation in classical and quantum mechanics AMO De Almeida Physics reports 295 (6), 265-342, 1998 | 259 | 1998 |
| Resonant Periodic Orbits and the Semiclassical Energy Spectrum H Ozorio de Almeida | 142* | 1987 |
| Geometry and Dynamics Of Stable and Unstable Cylinders In Hamiltonian Systems M Ozorio de Almeida, De Leon, Mehta Physica D 46, 265, 1990 | 93* | 1990 |
| Chaotic Dynamics and the GOE-GUE Transition nonlinearity S Bohigas , Giannoni , Ozorio de Almeida Nonlinearity 8, 203, 1995 | 92* | 1995 |
| Geometry of Two-Dimensional Tori In Phase Space: projections, sections and the Wigner function H Ozorio de Almeida Ann. Phys. NY 138, 115, 1982 | 88* | 1982 |
| Quantization of Anosov Maps OA de Matos | 87 | 1995 |
| The Weyl representation on the torus OA Rivas | 81 | 1999 |
| Tunnelling And The Semiclassical Spectrum For An Isolated Resonance O de Almeida J. Phys. Chem. 88, 6139, 1984 | 79 | 1984 |
| Periodic orbit theory for the quantized baker's map AMO De Almeida, M Saraceno Annals of Physics 210 (1), 1-15, 1991 | 70 | 1991 |
| Homoclinic chaos in the dynamics of a general Bianchi type-IX model T Oliveira, Ozorio de Almeida, Damião Soares Phys. Rev. D 65, 083511, 2002 | 68 | 2002 |
| Integrable Approximation To The Overlap Of Resonances OA Carvalho | 62 | 1992 |
| Symplectic evolution of Wigner functions in Markovian open Systems OA Brodier | 61 | 2004 |
| Semiclassical Approximation of The Radial Equation With Two-Dimensional Potentials OA Berry | 56 | 1973 |
| On the quantization of homoclinic orbits O de Almeida Nonlinearity 2, 519, 1989 | 55* | 1989 |
| On the propagation of semiclassical Wigner functions OA Rios | 54* | 2002 |
| Optical Realization of the Baker's Transformation OA Hannay, Keating Nonlinearity 7, 203, 1994 | 42* | 1994 |
| Analytical Determination Of Unstable Periodic Orbits In Area Preserving Maps D da Silva Ritter, Ozorio de Almeida Physica D 29, 181, 1987 | 42* | 1987 |
| Between wave and particle-the semiclassical method for interpreting high-energy electron micrographs of crystals MV Berry, BF Buxton, AMO De Almeida Radiation effects 20 (1-2), 1-24, 1973 | 37 | 1973 |
