Stephen G. Simpson, Kazuyuki Tanaka, Takeshi Yamazaki. Some conservation results on week König s lemma. Annals of Pure and Applied Logic, 118(1-2):87-114, 2002.
@article{SimpsonTY02, title = {Some conservation results on week König s lemma}, author = {Stephen G. Simpson and Kazuyuki Tanaka and Takeshi Yamazaki}, year = {2002}, researchr = {https://researchr.org/publication/SimpsonTY02}, cites = {0}, citedby = {0}, journal = {Annals of Pure and Applied Logic}, volume = {118}, number = {1-2}, pages = {87-114}, }