Key legal question
Whether the signed document of 18 February 1992 terminated the employment relationship immediately by mutual agreement.
Extracted holding
No. The employee did not really intend immediate termination and the employer knew it; there was no concordant manifestation of will, so the document had no legal effect.
Extracted reasoning
Contract formation requires concordant subjective will first. Since both parties understood that the employee wished to continue the contract, the written statement could not create a valid termination agreement.