TY - RPRT TI - Birth-date dependent population ethics: critical-level principles. AU - C Blackorby AU - W Bossert AU - D Donaldson PY - 1997 DO - 10.1006/jeth.1997.2333 UR - https://pubmed.ncbi.nlm.nih.gov/12294544/ ID - 12294544 ER -