@article {zidek2015comment,
	title = {Discussion of {\textquoteleft}{\textquoteleft}Optimal design in geostatistics under preferential sampling {\textquoteright}{\textquoteright} Ferreira and Gamerman},
	journal = {Bayesian Analysis},
	volume = {10},
	number = {3},
	year = {2015},
	pages = {749{\textendash}752},
	publisher = {International Society for Bayesian Analysis},
	author = {Zidek, James V and others}
}
