Complex sentence: Its members were, however, individually active during these years, and the group as a whole began to emerge from obscurity in 1973 with the publication of "La Littérature Potentielle", a collection of representative pieces.
Split into simpler sentences: Its members were, however, individually active during these years. The group as a whole began to emerge from obscurity in 1973 with the publication of "La Littérature Potentielle", a collection of representative pieces.