symmetric design
preferred label: طرح متقارن @fa
type: Concept
related: quasi-residual design

residual design
preferred label: طرح باقیمانده @fa
type: Concept
related: quasi-residual design

Gewirtz graph
preferred label: گراف ژئرتس @fa
type: Concept
related: quasi-residual design

symmetric 2-design
preferred label: 2-طرح متقارن @fa
type: Concept
narrower: quasi-residual design

quasi-residual design
related: Gewirtz graph
related: residual design
related: symmetric design
broader: symmetric 2-design
preferred label: طرح شبه‌باقیمانده @fa
type: Concept