Limitations
===========
-* Strings (except :py:class:`pyderasn.NumericString` and
+* Strings (except for :py:class:`pyderasn.NumericString` and
:py:class:`pyderasn.PrintableString`) are not validated
in any way, except just trying to be decoded in ``ascii``,
``iso-8859-1``, ``utf-8/16/32`` correspondingly
+* :py:class:`pyderasn.GeneralizedTime` does not support zero year
* :py:class:`pyderasn.UTCTime` and :py:class:`pyderasn.GeneralizedTime`
support only DER-encoding
* No REAL, RELATIVE OID, EXTERNAL, INSTANCE OF, EMBEDDED PDV, CHARACTER STRING