@Book{468499644,
title="Estonian archipelago to St. Petersburg: BSB4 format ; features: digital charts, Offshore Navigator Lite, software for real-time GPS tracking",
series="Maptech digital charts BALTCD 4",
year="2003",
edition="Ed. 4.0",
publisher="Maptech",
address="Amesbury, Mass.",
note="Maptech",
note="Serienz{\"a}hlung auf der H{\"u}lle: BLTCD 4",
note="Systemvoraussetzungen: Windows 98/NT/2000/ME or XP; Pentium class CPU; CD-ROM; 32 MB of RAM; 256 color, 800 x 600 display; 100 megabytes of hard disk space; mouse or drawing equivalent.",
language="English"
}