<h1>Zwicky, Fritz</h1>
<h2>Book from <a href="https://data.caltech.edu">CaltechTHESIS advisor</a></h2>
<ul>
<li>Romer, Alfred (1935) <a href="https://resolver.caltech.edu/CaltechTHESIS:10222024-174932481">Particle Sizes in a Crystalline Powder</a>; <a href="https://doi.org/10.7907/v138-7r13">10.7907/v138-7r13</a></li>
<li>Romer, Alfred (1935) <a href="https://resolver.caltech.edu/CaltechTHESIS:11112024-214534656">Particle Sizes in a Crystalline Powder</a>; <a href="https://doi.org/10.7907/qnrc-8576">10.7907/qnrc-8576</a></li>
</ul>