(From: 'Book of Haiku: Haikai and Haiku,' edited by Tsuguo ANDO and Ryuta IDA, Chikuma Shobo Publishers; 'A Basic Knowledge of Haiku Terms,' edited by Kokyo MURAYAMA and Kazumi YAMASHITA, Kadokawa Sensho; and 'Evidence: Haiku in Showa Period,' edited by Kokyo MURAYAMA and Kazumi YAMASHITA, Kadokawa Group Publishing Co., Ltd.)
（出典：安東次男・飯田竜太編「俳句の本・俳諧と俳句」筑摩書房、村山古郷・山下一海編「俳句用語の基礎知識」角川選書、「証言・昭和の俳句」角川書店）