For the request "coroutine":
N3708: A proposal to add coroutines to the C++ standard library from O. Kowalke, N. Godspeed
https://wg21.link/n3708N3985: A proposal to add coroutines to the C++ standard library (Revision 1) from O. Kowalke, N. Goodspeed
https://wg21.link/n3985N4024: Distinguishing coroutines and fibers from O. Kowalke, N. Goodspeed
https://wg21.link/n4024N4232: Stackful Coroutines and Stackless Resumable Functions from Nat Goodspeed
https://wg21.link/n4232N4244: Resumable Lambdas: A language extension for generators and coroutines from Christopher Kohlhoff
https://wg21.link/n4244N4397: A low-level API for stackful coroutines from Oliver Kowalke
https://wg21.link/n4397N4398: A unified syntax for stackless and stackful coroutines from Oliver Kowalke
https://wg21.link/n4398N4499: Draft wording for Coroutines (Revision 2) from Gor Nishanov, Daveed Vandevoorde
https://wg21.link/n4499N4628: Working Draft, Technical Specification on C++ Extensions for Coroutines from Gor Nishanov
https://wg21.link/n4628N4629: Editor's report for the Coroutines TS from Gor Nishanov
https://wg21.link/n4629N4649: Working Draft, Technical Specification on C++ Extensions for Coroutines from Gor Nishanov
https://wg21.link/n4649N4650: Editor's report for the Coroutines TS from Gor Nishanov
https://wg21.link/n4650N4663: Coroutines PDTS document from Gor Nishanov
https://wg21.link/n4663N4666: National Body Comments, SC22 N 5205, ISO/IEC PDTS 22277, C++ Extensions for Coroutines from Barry Hedquist
https://wg21.link/n4666N4678: National Body Comments for ISO/IEC PDTS 22277, C++ Extensions for Coroutines from Gor Nishanov
https://wg21.link/n4678N4679: Editor's report for the Coroutines TS from Gor Nishanov
https://wg21.link/n4679N4680: C++ Extensions for Coroutines TS Document from Gor Nishanov
https://wg21.link/n4680N4723: Working Draft, C++ Extensions for Coroutines from Gor Nishanov
https://wg21.link/n4723N4724: Editor's report for the Coroutines TS from Gor Nishanov
https://wg21.link/n4724N4736: Working Draft, C ++ Extensions for Coroutines from Gor Nishanov
https://wg21.link/n4736There are more papers. Please use more precise query.