Robuta

https://scholarship.haverford.edu/mathematics_facpubs/95/ "Invariants of Legendrian knots in circle bundles" by Joshua Marc Sabloff Legendrian knot, contact homology, Morse-Bott legendrian knots invariants circle bundles joshua https://eprints.lib.hokudai.ac.jp/repo/huscap/all/51578/ Reticular Lagrangian, Legendrian Singularities and their applications | 北海道大学学術成果コレクション : HUSCAP reticular lagrangian legendrian singularities applications