Ich hab ne Antwort im Piazza Dorum gefunden:
Sage Advice in Dragon #242 has an answer:
"Yeah, its an old question, one the Sage has answered before, but here's a better answer: An elf's resistance applies to spells and spell-like effects that allow continuing control over the recipient. These include charm person, charm monster, domination, fire charm, a vampire's charm gaze, a harpy's song, and many others. An elf's resistance does not apply to effects that allow limited control or impose a disability, such as command, hold person, suggestion, quest, or geas. Nor does an elf's resistance prevent outside influences from usurping control of the body, such as magic jar. Any effect that causes the recipient to fall into an enchanted slumber, such as the sleep spell or the sleep effect of the eyebite spell, is subject to elven resistance. If an opponent uses a command or suggestion spell to induce an elf to fall asleep, the elf does not gain the benefit of his resistance, but the resulting sleep is not 'magical' sleep, and the elf can awaken in response to loud noise, general discomfort, or the like."
One confirming clue is that sleep and charm in the description in the PHB is italicized, which specifically indicates magical effects; the schools and spheres are never italicized.
cu Drantos