PKISPolski Klub Infrastruktury Sportowej (Polish Infrastructure Sports Club)
PKISPublic Key Infrastructure Services (software)
References in periodicals archive ?
The index is positively related to AS (achievement score), PARK (park area), PKIS (park and recreation subprograms index), and PBT (per capita bus trips per week by each neighborhood), and it is negatively related to RFR (residential fire rate) and PTC (per capita total crimes by each neighborhood).