Brigitte Falkenburg has written:
'Die Form der Materie' -- subject(s): Philosophy of nature, History
'Teilchenmetaphysik' -- subject(s): Particles (Nuclear physics), Philosophy, Physics
Helena Hernmarck has written: 'Helena Hernmarck'
Helena Tornero has written: 'Apatxes'
Helena Almeida has written: 'Frisos'
Helena Leote has written: 'Kazumbi'
Helena Silveira has written: 'A humilde espera'
Helena Osborne has written: 'My enemy's friend'
Helena Joyce has written: 'The green lady'
Helena Karwacka has written: 'Witold Wandurski'
Helena Mitchell has written: 'Boys becoming readers'
Helena Iveson has written: 'Moon Beijing and Shanghai'
Helena MacDougall has written: 'The larger social contract'
Antoinette Buckinx-Luykx has written: 'Een draad door de tijd' 'Levend doorheen alle tijden' 'Het groote leven' -- subject(s): Conduct of life, Education, Girls, Women 'Het waren twee conincskinderen'