% Zhukhovitskii, radius of positronium nanocavities in a liquid
@ARTICLE{Zhukhovitskii20,
   author       = "D. I. Zhukhovitskii", 
   year         = "2005", 
   journal      = "Colloid J.", 
   volume       = "67", 
   pages        = "718",
   doi          = "10.1007/s10595-005-0154-9"
}