In the critics' vocabulary, the work 'precursor' is indispensable, but it should be cleansed of all connotations of polemics or rivalry.
"Kafka and His Precursors" (1951) (translation by James E. Irby)

In the critics' vocabulary, the work 'precursor' is indispensable, but it should be cleansed of all connotations of polemics or rivalry.