"referral sampling" in German referral sampling Schnellballstichprobenverfahren Schneeballverfahren Schneeballauswahl Detailed translations for "referral sampling" referral sampling referral sampling(also: snowball sampling, chain sampling, chain-referral sampling) Schnellballstichprobenverfahren referral sampling(also: snowball sampling, chain sampling, chain-referral sampling) Schneeballverfahren referral sampling(also: snowball sampling, chain sampling, chain-referral sampling) Schneeballauswahl