context: He is best known internationally for his comprehensive two-volume The Structure and Reproduction of the Algae; However his A Treatise of the British Freshwater Algae was also important.
source: Fritsch became a co-author of the revised edition in 1927.
reference_original: Fritsch se convirtió en co-autor de la edición revisada en 1927.
reference_flipped: Fritsch se convirtió en co-autora de la edición revisada en 1927.