Research on Tchaikovsky
In 2014 I completed a dissertation dealing with textural aspects to Tchaikovsky's style. It focuses on the fact that his style relies heavily on thematically based counterpoint, a finding running counter to the majority of previous musicography.
You can read it online here:
The importance of thematic counterpoint is not just valid for his symhonies, but for his orchestral, chamber musical and operatic production in general.