[1]Estrella Mazzoli de Mathov earned her Ph.D. at the University of Buenos Aires (UBA) with a dissertation titled, Absorption of cosmic radiation using lead and aluminum: obtaining a second maximum (1948), under the direction of Teófilo Isnardi.
[2] During her graduate studies, while conducting research for her doctoral thesis, Mathov began working with Geiger Müller counters, which are used for detecting and measuring ionizing radiation.
According to Roederer:"A group of us studying natural science and mathematics at the University of Buenos Aires gathered to hear teaching assistant Estrella Mathov talk about her trip to Brazil.
Estrella had just returned from a scientific conference that had been attended by many great cosmic-ray physicists, including Cecil Powell, Beppo Occhialini, and Brazil’s own César Lattes.
[3] In 1950–1951, Beatriz Cougnet and Juan G. Roederer, still students, exposed nuclear plates at high altitudes in the Andes mountains and obtained the second reported detection of subatomic particles called pi mesons, or pions.