Pan, Wuyun. 1997. {H}ouyin kao \zh{喉音考}. Mínzú yǔwén \zh{民族语文}. 10-24.
@article{jacquesestimative-pan97houyin, author = {Pan, Wuyun}, journal = {Mínzú yǔwén \zh{民族语文}}, pages = {10-24}, title = {{H}ouyin kao \zh{喉音考}}, year = {1997} }
Contribution: Estimative constructions cross-linguistically