{TAIL ~ The present invention} is concerned with novel liquid crystalline mixtures which contain components having {HEAD ~ a 4 alkenyl} or a 2Z alkenyl side chain and with the use of these compounds and mixtures for electro optical purposes 
{ TAIL ~ The present invention } is concerned with novel liquid crystalline mixtures which contain components having { HEAD ~ a 4 alkenyl } or a 2Z alkenyl side chain and with the use of these compounds and mixtures for electro optical purposes
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