referral and ldapsearch

[Oliver Bogosavljevic <oliver.bogosavljevic@desy.de>]

hi all,
i am a newbie to ldap and i have two problems.

1.is it posible to do this whis ldapsearch:
  ldap://ldap.desy.de/ou=People,o=DESY,c=de?mail?sub?(cn=Oliver%20Bogosavljevic)
  i only want to get the value of mail, how can i specify one attribute type ldapsearch
  should return?

2.how can i use referrals within entrys?
  for example: server A holds user data, server B holds mailadress
  how can i point the entry mail from server A to server B?


thanks in advance