It was only in 1978 that Doron Zeilberger realised the significance and used Sister Celine's methods to prove combinatorial identities.
Ito ay lamang sa 1,978 na Doron Zeilberger realised ang kahalagahan at ginamit kapatid na babae Celine ng mga pamamaraan upang patunayan kombinatoryal pagkakakilanlan.