author={Nicolas Chamel and Paweł Haensel and Julian Leszek Zdunik and Anthea Francesca Fantina},
  journal={International Journal of Modern Physics E-nuclear Physics},
One of the most intriguing questions about neutron stars concerns their maximum mass. The answer is intimately related to the properties of matter at densities far beyond that found in heavy atomic nuclei. The current view on the internal constitution of neutron stars and on their maximum mass, both from theoretical and observational studies, are briefly reviewed. 

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