00531nam 2200169z- 450 9910712402503321(CKB)5470000002494122(EXLCZ)99547000000249412220230509c2019uuuu -u- -engTechnology acceleration: fuel cell bus evaluationsNational Renewable Energy LaboratoryGolden, COTechnology accelerationBOOK9910712402503321Technology acceleration: fuel cell bus evaluations3335024UNINA