- Fellowship: Raman Research Institute, Bangalore, India (2 months, 1991)
- Fellowship: Service d’Astrophysique, Centre D’Etudes Nucleares de Saclay, France, (3 months, 1991)
- Grant RVI000, “The plasma model for the pulsar emission mechanisms: further development and interpretation of observations”, International Scientific Foundation, PI, 1994 – 1996
- Fellowship: California Institute of Technology, Pasadena, USA, 1 month., 1997
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