"Nobuhiro Honda","Degenerations of LeBrun twistor spaces",,"Communication of Mathematics and Physics",,"Vol. 301","No. 3","pp. 749-770",2011,
"Nobuhiro Honda,Fuminori Nakata","Minitwistor spaces, Severi varieties, and Einstein-Weyl structure",,"Annals of Global Analysis and Geometry",,"vol. 39","No. 3","pp. 293-323",2011,